女孩，2岁。反复喘息发作4次，对花粉过敏，其父年幼时有哮喘病史

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问题单项选择题共用题干题

该患儿3岁以后仍发复哮喘发作，若对吸入小剂量激素有效，应选择长期吸入，时间为（）

A.1周

B.1个月

C.3个月

D.5个月

E.6个月～2年或更长

答案

参考答案：E

补全对话，情景问答

选择适当的句子补全对话。

A: Excuse me,sir. Could you tell me the way to Beijing Safari Park (北京野生动物园)?

B: Sorry, 1 I'm a tourist here. 2

A: Excuse me,Madam. How can I go to Beijing Safari Park?

C: Go to that bus station on your right. 3

A: 4

C: You can take the No. 365 bus.

A: Thanks very much.

C: 5

A. You 're welcome.

B. Which bus shall I take?

C. I don 't know.

D. You can take a bus to go there.

E. Please ask the woman over there.

填空题

分馏塔的液流形式有（），（），（）等。