下列()不属于消费者价格指数(CPI)的主要类别。
A.服装
B.交通
C.社会保障税
D.娱乐
参考答案:C
解析:
收入税和社会保障税都不在消费者价格指数(CPI)的计算中。
多数肺泡破裂合并而成的较大含气空腔称()
A.泡性肺气肿
B.肺大疱
C.空腔
D.空洞
E.气胸
Lawrence Craven, a doctor from the USA, is the author of _____ several published reports, one of
introduced the idea in 1953 _____ aspirin could reduce the risk of heart attacks. [ ]
A. them; when
B. which; that
C. what; that
D. which; when