皮皮学，免费搜题
登录
搜题
【判断题】
股票组合的β系数表示指数涨跌是该组合的β倍。 ( )A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】One big problem with banknotes that hasn't been solved by now is that ______.
A.
there are few material to make banknotes
B.
paper money cause serious pollution
C.
it is hard to stop making false banknotes
D.
banknotes can't last for a long time
【单选题】The word part trans- means
A.
a. heat. b. change. c. again..
B.
a. heat. b. change. c. again.
C.
a. heat. b. change. c. again
D.
1
相关题目：