【单选题】【消耗次数：1】
By cutting down trees we ____ the natural home of birds and animals.
①
harm
②
hurt
③
injure
④
damage
参考答案：
复制
纠错
相关题目
【多选题】
______________ , we went home.
①
The problem solved
②
The problem is solved
③
When the problem solved
④
When the problem was solved
【简答题】
We trust that you will give special care to the packing in order to avoid damage in transit.
【多选题】
We were very tired and wanted to get home ____________________ .
①
as soon as possible
②
as quickly as possible
③
as fast as possible
④
as much as possible
【单选题】
We looked for a table to sit down, but they were all ____.
①
reserved for
②
engaged in
③
used up
④
taken up
【单选题】
- Shall we sit up here on the grass or down there near the water?
①
I’d rather stay here if you don’t mind
②
Sorry, I don’t like neither
③
Certainly, why not?
④
Yes, we like these two places
【单选题】
Shall we sit up here on the grass or down there near the water?_________
①
I’d rather stay here if you don’t mind.
②
Sorry, I don’t like neither.
③
Certainly, why not?
④
Yes, we like these two places.
【单选题】
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)．Land becomes desert after all trees are cut down because __________.
①
roots of trees break up the soil
②
no tree keeps the rain and protects the top-soil
③
strong winds bring a lot of sand
④
there are too many rainfalls to make it
随机题目
【单选题】
下列对于颈外动脉的描述哪一项是错误的（）
①
来源于颈总动脉
②
开始在颈内动脉前内侧，继而转到前外侧
③
在颈部有一系列分支
④
上行于腮腺的浅面，形成终支-颞浅动脉
⑤
暂时阻断颈外动脉，颞浅动脉和颌外动脉均无波动
【单选题】
锁骨上淋巴结的解剖特点为（）。
①
又称颈横淋巴结
②
列于颈横血管的浅面
③
收集下颌下淋巴结和锁骨下淋巴结的输出管
④
其输出管人颈深下淋巴结
⑤
胃癌或食管癌患者常发生左锁骨上淋巴结转移
【单选题】
对颈深淋巴结的描述，正确的是
①
鼻咽癌早期常发生颈深上淋巴结转移
②
沿颈内动脉排列
③
以肩胛舌骨肌与胸锁乳突肌交叉为界，分颈深上及颈深下淋巴结
④
颈深下淋巴结汇入颈深上淋巴结
⑤
鼻旁窦常早期发生颈深淋巴结转移
【单选题】
有关颈浅淋巴结的描述错误的是()
①
位于胸锁乳突肌浅面
②
沿颈外静脉排列
③
收集腮腺、耳后等处的淋巴液
④
输出管穿越胸锁乳突肌引流到颈深淋巴结
⑤
口腔癌先转移到颈浅淋巴结，晚期到颈深淋巴结
【单选题】
腮腺深淋巴结的解剖特点是（）
①
约有5一10个
②
全部位于腮腺深面
③
收集腮腺及其相应的面部皮肤、龈睑外侧结膜的淋巴
④
也收集外耳道、咽鼓管、鼓室粘膜的淋巴
⑤
其输出管人颈深上淋巴结、颈浅淋巴结、锁骨上淋巴结
【单选题】
下列面神经走向的描述哪项是错误的（）
①
穿内耳道底入面神经管
②
经茎乳孔出颅
③
在面神经管内发出三条分支
④
以茎乳孔为界分为面神经管段和颅外段
⑤
穿腮腺浅叶，扇形分布于表情肌
【单选题】
面神经出茎乳孔后在腮腺内分成5支，分别是（）
①
眼神经、上颌神经、下颌神经、颊神经、颈神经
②
眼神经、耳颞神经、下颌神经、颊神经、颈神经
③
眼神经、上颌支、下颌支、下颌缘支、颈支
④
颞支、颧支、颊支、下颌缘支、颈支
⑤
颞支、颧支、下颌缘支、颊支、舌下支