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【单选题】
关于建立状态方程的作用,以下叙述不正确的是A.
可以解决由于实验的P-V-T数据有限无法全面了解流体P-V-T 行为的问题。
B.
可以解决实验的P-V-T数据精确度不高的问题
C.
可以从容易获得的物性数据（P、V、T、x）来推算较难测定的数据（ H，U，S，G ）
D.
可以解决由于P-V-T数据离散不便于和积分，无法获得数据点以外的P-V-T的问题
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举一反三
【单选题】Miss Green isn’t in the office. She_______ to the library.
A.
went
B.
was
C.
has gone
D.
has been
【简答题】Do you know when the plane will take off? The passengers are dying ________ (know) it.
【单选题】Miss Green isn’t in the office. she_______ to the library.
A.
has been
B.
has gone
C.
went
D.
will go
【单选题】— Do you know the tower _____ in the heart of the city? — Do you mean the one _____ to the north of the city library?
A.
locating; lay
B.
located; lying
C.
being located; lying
D.
located; lay
【单选题】Miss Green isn’t in the office. She _______(去了) to the library.
A.
went
B.
will go
C.
has gone
D.
/
【单选题】Miss Green isn’t in the office.She ____to the library.
A.
has gone
B.
went
C.
has been
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