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【判断题】
几个实验符合期望效用准则。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】—Have you got an apple _____ a banana? —I've got a banana. [ ]
A.
and
B.
but
C.
or
D.
so
【单选题】—Excuse me, have you got an eraser? —Sorry, I haven't. Why _____ you ask Mary? Perhaps she's got one. [ ]
A.
do
B.
don't
C.
did
D.
didn't
【单选题】—Excuse me , Have you got an eraser? —Sorry, I haven't. Why _____ you ask Mary? Perhaps she has one. [ ]
A.
do
B.
don't
C.
did
D.
didn't
【简答题】为什么在液压机上要加装冲裁缓冲器?如何缓冲?
【简答题】砖在干湿变化、温度变化、冻融变化等物理因素的作用下，不破坏并长期保持原有性能的能力称为耐久性。 判断对错
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