用所给词的适当形式填空。

1. I'm going __________(sightsee) in Italy.

2. She plans _________(have) a very relaxed vacation.

3. What should they _________(take)with them?

4. My grandfather often goes ______(fish) every Sunday.

5. Can your sister _________(speak) English?

患者男，56岁，慢性肺源性心脏病。神志清楚，呼吸困难，口唇发绀明显，氧分压5.5kPa，二氧化碳分压10.3kPa。

该病人正确的给氧方法是

A．间歇给氧

B．低流量低浓度持续给氧

C．高浓度间歇给氧

D．高压给氧

E．低流量间歇给氧