【简答题】【消耗次数：1】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[collide with; take hold of; for a moment; head for; ever since; be full of; share with; make fun of]3. Dont[填空1]the disabled!
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【简答题】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[collide with; take hold of; for a moment; head for; ever since; be full of; share with; make fun of]4. As he fell, his head[填空1]the table.
【简答题】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[collide with; take hold of; for a moment; head for; ever since; be full of; share with; make fun of]7. Anyone can upload their dictionary and[填空1]others.
【简答题】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[collide with; take hold of; for a moment; head for; ever since; be full of; share with; make fun of]5.[填空1]your end of the stick, and well pull you up.
【简答题】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[collide with; take hold of; for a moment; head for; ever since; be full of; share with; make fun of]6. We saw him[填空1]us, so we stepped aside.
【简答题】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[collide with; take hold of; for a moment; head for; ever since; be full of; share with; make fun of]1. Ann had lived in a cottage[填空1]she was born, and had no wish to move to a tower block.
【简答题】
Direction: Fill in the blanks with the words given below. Change the form if necessary.[dodge; mean; tease; disability; regular; bonus; proclaim; universal]3. That is a[填空1]trick!
【简答题】
Direction: Fill in the blanks with the words given below. Change the form if necessary.[assumption; contact; cliff; equivalent; emergency; outweigh; height; rummage; vibration; bugbear]3. Money is my biggest[填空1].
【简答题】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[have access to; go off; desperate for; put up with; always the case; give advice; concentrate on; arrive at; make an effort; come in handy]3. This means that across the country all students will[填空1]computers.
【简答题】
Direction: Fill in the blanks with the phrases given below. Change the form if necessary.[have access to; go off; desperate for; put up with; always the case; give advice; concentrate on; arrive at; make an effort; come in handy]9. But in reality this is not[填空1].
【简答题】
Direction: Fill in the blanks with the words given below. Change the form if necessary.[chore; talent; crowded; earnings; finance; festive; memorable; sacrifice; smash; reproduction]3. He was satisfied with his[填空1]as an accountant.
随机题目
【单选题】
对于100mL 1mol/L盐酸与锌粒的反应，采取下列措施能使反应速率加快的是（ ）。①升高温度；②改用100mL 3mol/L盐酸；③多用300mL 1mol/L盐酸；④用等量锌粉代替锌粒
①
①②③
②
②③④
③
①③④
④
①②④
【单选题】
对某一可逆反应来说，使用催化剂的作用是（ ）。
①
提高反应物的平衡转化率
②
改变平衡混合物的组成
③
增大正反应速率，减小逆反应速率
④
以同样程度改变正逆反应的速率
【单选题】
对于反应<img class="kfformula" src="20200629/1593408362686817.png" data-latex="{2SO}_{2}+{O}_{2}-{2SO}_{3}" width="124" height="28"/>正反应放热，增大压强，平衡（）移动。
①
向逆反应方向移动
②
平衡不移动，浓度改变
③
向正反应方向移动
④
平衡不移动，浓度不变
【单选题】
取pH值均等于2的盐酸和醋酸各100 mL分别稀释2倍后，再分别加入0.03g锌粉，在相同条件下充分反应，有关叙述正确的是（）。
①
醋酸与锌反应放出氢气多
②
盐酸和醋酸分别与锌反应的速率一样大
③
盐酸和醋酸分别与锌反应放出的氢气一样多
【单选题】
用pH均为2的盐酸和醋酸溶液，分别中和等体积、等物质的量浓度的氢氧化钠溶液，当氢氧化钠恰好完全中和时，消耗盐酸和醋酸溶液的体积分别为<img class="kfformula" src="20200629/1593410807763639.png" data-latex="{V}_{1}和{V}_{2}" width="62" height="26"/>，则<img class="kfformula" src="20200629/1593410807313382.png" data-latex="{V}_{1}和{V}_{2}" width="61" height="22"/>的关系正确的是（）。
①
<img class="kfformula" src="20200629/1593410807121645.png" data-latex="{V}_{1}{V}_{2}" width="65" height="36"/>
②
<img class="kfformula" src="20200629/1593410807286465.png" data-latex="{V}_{1}={V}_{2}" width="78" height="34"/>
③
<img class="kfformula" src="20200629/1593410807420867.png" data-latex="{V}_{1}\leq {V}_{2}" width="69" height="37"/>
④
<img class="kfformula" src="20200629/1593410807799986.png" data-latex="{V}_{1}{V}_{2}" width="73" height="29"/>
【单选题】
下列物质的溶液呈碱性的是（）。
①
<img class="kfformula" src="20200629/1593414817730024.png" data-latex="{NH}_{4}{NO}_{3}" width="89" height="29"/>
②
<img class="kfformula" src="20200629/1593414817960955.png" data-latex="{CH}_{3}COOH" width="99" height="32"/>
③
<img class="kfformula" src="20200629/1593414817929066.png" data-latex="{Na}_{2}{SO}_{4}" width="69" height="36"/>
④
<img class="kfformula" src="20200629/1593414817102788.png" data-latex="{Na}_{2}{CO}_{3}" width="65" height="31"/>
【单选题】
有关AgCl沉淀的溶解平衡说法正确的是( )。
①
升高温度，AgCl沉淀的溶解度增大
②
AgCl难溶于水，溶液中没有<img class="kfformula" src="20200629/1593414945688546.png" data-latex="{Ag}^{+}和{C1}^{-}" width="100" height="26"/>
③
向AgCl沉淀中加入NaCl固体，AgCl沉淀的溶解度不变
④
AgCl沉淀生成和沉淀溶解不断进行，但速率为0
【单选题】
下列关于<img class="kfformula" src="20200629/1593417409604364.png" data-latex="{A1(OH)}_{3}" width="69" height="31"/>的性质叙述错误的是( )。
①
<img class="kfformula" src="20200629/1593417409786278.png" data-latex="{A1(OH)}_{3}" width="87" height="28"/>能凝聚水中的悬浮物，也能吸附色素
②
<img class="kfformula" src="20200629/1593417409149659.png" data-latex="{A1(OH)}_{3}" width="65" height="32"/>是两性氢氧化物
③
<img class="kfformula" src="20200629/1593417409705622.png" data-latex="{A1(OH)}_{3}" width="80" height="33"/>既溶于NaOH溶液、氨水，又能溶于盐酸
④
<img class="kfformula" src="20200629/1593417409896124.png" data-latex="{A1(OH)}_{3}" width="89" height="29"/>是难溶于水的白色胶状物质
【单选题】
下列说法错误的是( )。
①
二氧化硅是制造光导纤维的材料
②
水玻璃可用作木材防火剂
③
常温下硅性质活泼，可以与氯气、强酸、强碱溶液等起反应
④
硅是制造太阳能电池的常用材料