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视锥细胞的功能是：()

A.感受强光
B.感受弱光
C.能分辨颜色
D.不能分辨颜色
E.对物体的细微结构分辨力高

【参考答案】

A,C,E

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生长素的作用是：()

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There's a time in every man's education when he arrives tat eh conviction that envy is ignorance; that imitation is suicide; that he must take himself for better, for worse, as his portion… Trust thyself; very heart vibrates to that iron string.Whoso would be a man must be a nonconformist. Questions:1. This selection is selected form. an essay. What is the title of that?2. Who is the author of the essay?3. According to the selection, what do you think the author believe in?

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