下列各图表示高等动物的四种组织，其中能够接受刺激、产生兴奋并传导兴奋的是_刷题宝

题干

下列各图表示高等动物的四种组织，其中能够接受刺激、产生兴奋并传导兴奋的是（）

A：

B：

C：

D：

上一题下一题 0.0难度选择题更新时间:2017-02-19 04:33:45

答案(点此获取答案解析）

A

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用计算器计算

6501－519＋7020＝（）

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\frac{\sqrt{3}}{2}

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A: Jim, you said you would not stay out late after school, didn't you?

B: Yes, mom, I did.

A: But it's 10 o'clock now. ____

B: Sorry. I've been to the hospital.

A: What? ____

B: No. I sent Jack to the hospital.

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B: He had a terrible headache on the way home.

A: Is he better now?

B: ____

A: Good for you, my dear! I'm very glad you can help others.

B: ____

A. What should I do?

B. Thank you, mom.

C. Where have you been?

D. Yes, he is.

E. What was wrong with him?

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