商业银行的（）负责执行董事会批准的操作风险管理战略、总体政策及体系。A.监事会 B

根据短文内容和所给的首字母，完成下列句子。

Tom and David live in the same building and they’re in the same class. It’s a little far from their school. David has a bike, but Tom doesn’t have one. He has to get up early in the morning. After breakfast he goes to the bus stop quickly. Sometimes there’re many people in the bus and he can’t find a seat for himself. When he gets to the classroom, he’s tired. So he asked his father to buy a bike for him. The worker is not rich enough and didn’t agree. The boy began to cry sadly and he had to say, “Well. I’ll buy a bike for you next term.”

Tom is very happy. But he must learn to ride it. It’s Saturday today and the boy helped his mother with some washing and cleaning this morning. After lunch he went to David’s and Mrs. White opened the door.

“Can David come out and play with me?” asked the boy.

“I’m sorry, but he’s asleep now.” answered the woman.

“Then can his bike come out and play with me?” he asked hopefully.

小题1:David is Tom’s c____________.

小题2:Tom’s father is p___________, so the boy has no bike.

小题3:Tom goes to school by b___________.

小题4:Tom helped his mother with some h____________ this morning.

小题5:Tom went to David’s to b___________ his bike.

超声雾化器雾化罐内放入稀释的药液，其液量约为()

A．100～120ml

B．60～80ml

C．30～50ml

D．10～30ml

E．1～5ml

建筑构造中的条形基础适用于( )建筑中。

A．砖木结构
B．砖混结构
C．钢筋混凝土结构
D．钢结构

简述现代学制的发展趋势。

长期观测点（站）的水样采取一般按季进行，每年至少采取（）次。地下水化学成分不稳定时，应增加采样次数。

A.2

B.4

C.3

D.1