【单选题】【消耗次数：1】
下列有关滴眼剂的叙述,错误的是（）
①
正常眼可耐受一定的PH
②
滴眼剂应与泪液等渗
③
增加滴眼剂的黏度,使药物扩散速度减小,不利于药物的吸收
④
可适当添加抑菌剂
⑤
滴眼剂是直接用于眼部的外用液体制剂
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相关题目
【单选题】
下列有关滴眼剂的叙述,错误的是（ ）。
①
正常眼可耐受一定的pH
②
可适当添加抑菌剂
③
滴眼剂应与泪液等渗
④
增加滴眼剂的黏度,使药物扩散速度减小,不利于药物的吸收
⑤
滴眼剂是直接用于眼部的外用液体制剂
【单选题】
下列有关滴眼剂的叙述中不正确的是（）。
①
滴眼剂为低渗溶液时，应该用合适的药物调成等渗
②
尽量单独使用一种滴眼剂，若有需要需间隔10分钟以上再使用两种不同的滴眼剂
③
正常眼可耐受的pH为5.0～9.0，pH 6～8时无不舒适感觉
④
滴眼剂不能加入抑菌剂
⑤
滴眼剂的黏度适当增大后可减少刺激作用
【单选题】
毛果芸香碱滴眼后可引起 ( )
①
缩瞳，升高眼内压和调节痉挛
②
缩瞳，降低眼内压和调节痉挛
③
缩瞳，升高眼内压和调节麻痹
④
扩瞳，降低眼内压和调节痉挛
⑤
缩瞳，降低眼内压和调节麻痹
【单选题】
影响眼用制剂药物吸收的错误表述是（）
①
完全解离或完全不解离的药物不能透过完整的角膜
②
角膜吸收是药物进入体循环的主要途径
③
滴眼剂溶液的表面张力大小可影响药物的吸收
④
弱碱性药物在pH偏碱性时吸收较好
⑤
角膜吸收是眼局部用药的有效吸收途径
随机题目
【单选题】
阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．5. Which title best fits the passage?
①
A. Trees and Man
②
B. The Function of Tree Wood
③
C. How do People do with Trees?
④
D. The Usage of Tree Roots
【单选题】
Doctors ___ in every part of the world.
①
need
②
are needing
③
are needed
④
will need
【单选题】
The Peoples Republic of China ___ on October 1, 1949.
①
found
②
was founded
③
is founded
④
was found
【单选题】
A new house ___ at the corner of the road.
①
is building
②
is being built
③
been built
④
be building
【单选题】
阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．4. Why did the country mentioned in the passage suffer from floods and starvations?
①
A. Because it set up an empire.
②
B. Because it fell to pieces.
③
C. Because it turned its trees into warships.
④
D. Because it spent too much money on wars.
【单选题】
阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．3. Land becomes desert after all trees are cut down because __________.
①
A. roots of trees break up the soil
②
B. no tree keeps the rain and protects the top-soil
③
C. strong winds bring a lot of sand
④
D. there are too many rainfalls to make it
【单选题】
阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．1. According to the passage, which is the most important service of trees to man?
①
A. They help him make money.
②
B. They give him cool.
③
C. They give him wood and other things.
④
D. They help him to stop droughts and floods.
【单选题】
These papers___yet.
①
have not written
②
have not been written
③
has not written
④
has not been written