生态系统中受到捕食压力最大的是（ ）

【名词&注释】

修辞手法(rhetorical devices)、可信性(credibility)、胃肠平滑肌(gastrointestinal smooth muscle)、消化腺(digestive gland)、不明显(not obvious)、博闻强记、迷走神经兴奋、平滑肌活动、肉食动物(carnivore)

[单选题]生态系统中受到捕食压力最大的是（ ）

A. 植食动物
B. 一级肉食动物^(carnivore)
C. 二级肉食动物^(carnivore)
D. 三级肉食动物^(carnivore)

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学习资料：

[单选题]Passage Four"Cool" is a word with many meanings. Its old meaning is used to express a temperature that is a little bit cold. As the world has changed, the word has had many different meanings.

A. "Cool" can be used to express feelings of interest in almost anything. When you see a famous car in the street, maybe you will say, "It's cool. ' You may think, "He's so cool," when you see your favorite football player.
B. We all maximize (扩大) the meaning of "cool". You can use it instead of many words such as "new" or "surprising". Here's an interesting story we can use to show the way the word is used. A teacher asked her students to write about the waterfall (瀑布) they had visited. On one student's paper was just the one sentence, "It's so cool." Maybe he thought it was the best way to show what he saw and felt.
C. But the story also shows a scarcity of words. Without "cool", some people have no words to show the same meaning. So it is quite important to keep some credibility (可信性). Can you think of many other words that make your life as colorful as the word "cool"? I can. And I think they are also very cool.
D. 46. We know that the word "cool" has had______.
E. only one meaning
F. no meanings
G. the same meaning
H. many different meanings

[单选题]“不破楼兰终不还”一句运用的修辞手法是( )

A. 夸张
B. 比喻
C. 借代
D. 拟人

[单选题]韩愈《张中丞传后叙》中，与刻画南霁云性格的描写无关的是( )

A. 博闻强记
B. 拔刀断指
C. 义不忍食
D. 射塔明志

[单选题]迷走神经兴奋时引起( )

A. 胃肠平滑肌活动增强，消化腺分泌减少
B. 胃肠平滑肌活动减弱，消化腺分泌增加
C. 胃肠平滑肌活动增强，消化腺分泌增加
D. 胃肠平滑肌活动减弱，消化腺分泌减少
E. 胃肠平滑肌活动变化不明显，消化腺分泌增加

[单选题]People do not agree with each other as to what is the ____ role of government.

A. quiet
B. proper
C. grand
D. quick

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