在信用证交易中，银行根据信用证取代买方承担了作为第一付款人的义务。日后只要卖方提供了

Choose the best response from A to F according to the sentences given.

小题1:How long have you been in this hospital?

小题2:What happened to your friend last Saturday afternoon?

小题3:You haven’t seen him for a long time ,have you?

小题4:May I ask you some questions on the accident?

小题5:What’s the highest mountain in the world?

根据注水井的（）位置，边缘注水可分为缘外注水、缘上注水和缘内注水三种。

A、井别

B、井排

C、分布

D、井距

—Is this his ball?

—__________.

A. Yes, it's his ball.  

B. No, it's a ball.  

C. No, it's not my ball.  

D. Ball

试述新生儿生理性与病理性黄疸的鉴别。

输液过程中，小壶内的液面自行下降,引起该现象发生的原因可能是

A．输液速度过快

B．输液速度过慢

C．小壶下方输液管脱开

D．小壶本身有裂隙

E．未接排气针