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【单选题】
加权股价指数包括（ ）。
Ⅰ．简单算术加权股价指数Ⅱ．基期加权股价指数
Ⅲ．计算期加权股价指数Ⅳ．几何加权股价指数
A.
ⅠⅡ
B.
ⅠⅡⅢ
C.
ⅠⅡⅣ
D.
ⅡⅢⅣ
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】A. As is known, we set great store by the trade relationship with the third world countries.B. We’ve never had any difficulties with our Chinese partners, and we ’ d like to make as many new contacts ...
A.
By leaving out some necessary information.
B.
By providing more information than needed.
C.
By using their body language.
D.
By telling some unbelievable lies.