2006年5月，某市低档护肤品生产企业(一般纳税人)将本单位生产的花露水，作为福利发

妊娠期时血浆水平下降的激素是()

A．促甲状腺素

B．促性腺激素

C．甲状旁腺激素

D．肾上腺素

E．胰高血糖素

上海旅游节是一个“节庆超市”，以下（）是上海旅游节的组成部分。

A.四川北路欢乐节

B.崇明森林旅游节

C.上海啤酒节

D.枫泾水乡婚典

E.奉贤旅游风筝会

Last Summer vacation I paid a visit to Xishuangbanna, and was attracted by its _____ beauty of nature,

seemingly untouched by human footprints.[ ]

A. primitive

B. ancient

C. unusual

D. favourite

用所给单词的适当形式填空。

1. This book is _____ (cheap) than that one.

2. He is _____ (friend) to me.

3. How many _____(sheep) are there on the hill?

4. Tom writes _____ (careful).

5. Please keep the door _____ (open).

6. This is _____ (she) book.

7. That is the _____ (good) music in the world.

8. Your coat is as _____ (new) as hers.

9. He is the best _____ (perform).

10. There are some _____ (child) in the park.

神经细胞锋电位上升支的离子机制为（）

A.Na⁺内流

B.Na⁺外流

C.Ca⁺内流

D.K⁺外流

E.K⁺内流