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问题 单项选择题

慢性阻塞性肺疾病急性加重期血气分析：pH7.40，PaO40mmHg，PaCO70mmHg，进行氧疗应采用()

A．间断低流量给氧

B．持续低流量给氧

C．间断高浓度高流量吸氧

D．立即纯氧吸入

E．持续高浓度高流量吸氧

答案

参考答案：B

计算题

求x的值。

x2=49

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补全对话，情景问答

补全对话。

Celio: Hi, Jim. What's the weather like today?

Jim: It's cool today. Today is Friday. 1_______________________________?

Celio: We have English and music on Fridays. Look! 2_______________________________?

Jim: He's my P. E. teacher.

Celio: 3_______________________________? 

Jim: He's very kind.

Celio: 4_______________________________?

Jim: No, he's not funny.

Celio: Oh, tomorrow is weekend. 5_______________________________?

Jim: I often play ping-pong. What about you?

Celio: I play ping-pong, too.

Jim: It's six o'clock. It's time to go home. See you.

Celio: See you.
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