对心脏神经的描述，正确的是（）。 A.支配心脏的副交感神经节前

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问题单项选择题

对心脏神经的描述，正确的是（）。

A.支配心脏的副交感神经节前纤维起于第4～5胸髓节段的侧角

B.支配心脏的交感神经节前纤维起于迷走神经背核

C.心脏的传入纤维主要通过迷走神经和交感神经传入中枢

D.支配心脏的交感神经是胆碱能纤维

E.支配心脏的副交感神经是肾上腺素能纤维

答案

参考答案：C

阅读理解

阅读短文，选择合适的答案。

It's Sports Day today. The students are all in the playground. Some of them are having matches(比赛).

Some of them are watching. Look, Helen and Yang Ling are running. Helen is running faster than Yang

Ling. Liu Tao and David are jumping. Liu Tao jumps higher than some of the boys in his class, but David

jumps higher than him. Mike and Tom are doing the long jump now. Who jumps farther, Mike or Tom?

Oh, Mike is jumping two centimeres farther than Tom. They look very happy.

1. It's _______ today.

A. Teachers' Day

B. Sports Day

C. Children's Day

2. The students _______ are having the matches.

A. in the sports hall

B. in the classroom

C. in the playground

3. Liu Tao jumps _______ than David.

A. lower

B. higher

C. farther

4. _______ doesn't jumps as far as Mike.

A. Tom

B. Yang Ling

C. Helen

5. The students are all very _______.

A. tired

B. happy

C. hungry

多项选择题

FCC监控下列哪些部件的信号，以确定它们能否接通A/P（）

A."副翼A/P作动器A、B上的液压压力电门"

B.自动减速板组件

C.速度选择电门

D.驾驶员A/P断开电门