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【简答题】
封闭系统的热力学第一定律的数学表是 ,当系统发生无限小的变化时,表为 。
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皮皮学刷刷变学霸
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【单选题】If it were not for the fact that she _____ use a computer, I would choose her to be my secretary.
A.
couldn’t
B.
can’t
C.
shouldn’t
D.
might not
【单选题】If I am not_____when you come to my office, ask for my secretary.
A.
suitable
B.
available
C.
comfortable
D.
proper
【简答题】( )是我国第一部诗歌总集,原本称为( )或( ),汉武帝以后才尊为 “ 经 ” ,收录了从西周初年到春秋中叶约五百余年间的诗歌共( )篇。根据音乐的不同,分为( )、( )、( )三种体例,创造了赋、比、兴的写作手法。
【单选题】If I have to choose_____ Tom and Rose, l would say Tom is the better to be my secretary.
A.
among
B.
with
C.
for
D.
between
【单选题】If my secretary ____ in the office when you get to the company, please tell her to go home.
A.
works
B.
has worked
C.
is working
D.
will work
【单选题】My secretary usually opens my post_____it’s marked “private”.
A.
unless
B.
if
C.
as
D.
for
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