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【判断题】
对于具有外力作用的非保守机械系统,其拉格朗日动力函数L可定义为系统A.
正确
B.
错误
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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】听力原文：M: Jack seems to think this year's basketball season will be disappointing. W: That's his opinion. Most others think differently. Q: What does the woman mean? (5)
A.
She does not agree with Jack.
B.
Jack's performance is disappointing.
C.
Most people will find basketball boring.
D.
She shares Jack's opinion.
【单选题】--- Jack Chou will give a concert at the City Stadium on Sunday evening. ---- Where did you ____ that?
A.
come about
B.
take over
C.
pick up
D.
turn out
【单选题】听力原文：M: Jack seems to think this year's basketball season will be disappointing. W: That's his opinion. Most others think differently. What does the woman mean?
A.
She does not agree with Jack.
B.
Jack's performance is disappointing.
C.
Most people will find basketball boring.
D.
She shares Jack's opinion.
【简答题】资产减值损失属于( )性质的会计科目。
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