当用FIND命令或SEEK命令找到记录时，函数FOUND( )和EOF( )的值分别

一_______do you like monkeys and penguins?

一Because monkeys are very smart and penguins are very cute.[ ]

A. How                  

B. What

C. Why                  

D. How much

Alice's father always brings her a nice gift _____ he returns home from his business trip. [ ]

A. by the time

B. at the time

C. every time

D. in the time

切断动物颈部迷走神经后动物的呼吸将变为

A．变深变慢

B．变浅变慢

C．不变

D．变浅变快

E．变深变快

寡糖是由多少个单糖所构成的糖类（）。

A.1～3个

B.3～5个

C.5～7个

D.7～10个

E.3～9个

一列火车从静止开始做匀加速直线运动，一人站在第一节车厢旁边的前端观察，第一节车厢通过他历时2s，整列车箱通过他历时6s，则这列火车的车厢有（）

A.3节

B.6节

C.9节

D.12节