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搜题
【判断题】
机会成本是企业的实际支出或资产耗费,因而需要在会计记录中反映。(    )
A.
正确
B.
错误
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举一反三
【单选题】Did you _____ any photos at the aquarium? [     ]
A.
show
B.
get
C.
make
D.
take
【单选题】- Did you get a dictionary? - No, I _____, but there were not any _____.
A.
tried; to be left
B.
had tried to; leaving
C.
tried to; left
D.
had tried; have left
【单选题】已知角P 的终边经过点 ,则 的值为 ( )
A.
0
B.
1
C.
-1
D.
不存在
【单选题】已知角 的终边经过点 ,则 的值等于
A.
B.
C.
【简答题】Did you have any difficulty (get) _______ a visa to Britain?
【多选题】微波元件的分类方法通常有()
A.
按波段分或带宽分
B.
按传输形式分
C.
按外形结构分
D.
按功能分
【单选题】已知角α的终边经过点 ,则 ,则t的值为
A.
0
B.
C.
D.
0或
【单选题】--Did you get any fish when you were fishing yesterday? --Yes. I got than any of them.
A.
many
B.
many more
C.
much more
D.
the most
【单选题】已知角a的终边经过点P(4,3),则sina+cosa的值是(  )
A.
1 5
B.
- 1 5
C.
7 5
D.
- 7 5
【简答题】已知角a的终边经过点P(3,-4),则sina-2cosa的值是 .