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【单选题】
由等温放热过程、绝热压缩过程、等温加热过程和绝热膨胀过程所组成的循环是A.
柴油机工作循环
B.
二次回热循环
C.
逆卡诺循环
D.
蒸汽动力循环
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反馈参考答案：
举一反三
【简答题】录音中有五个句子，每个句子听一遍，然后从每小题A、B、C三个选项中选出每个句子的正确答语。 ( )1. A. Thank you. ( )2. A. Sorry, I don't know. ( )3. A. My pleasure. ( )4. A. She is pretty. ( )5. A. It's a sunny day. B. With ple...
【多选题】以下应记入企业“销售费用”账户的有：
A.
销售材料的运费
B.
销售商品的运费
C.
购买材料的运费
D.
销售商品的包装费
E.
销售机构人员的薪酬
F.
广告费用
G.
展览费用
【简答题】唤起、引起 v. e _ _ _ _
【单选题】You’d better take the documents along ______ they want to see them.
A.
if
B.
so that
C.
in case
D.
as long as
【单选题】You’d better take your coat with you __________ it becomes colder.
A.
in case
B.
so that
C.
even if
D.
as if
【单选题】You’d better take some medicine with you before you leave ______ someone gets sick.
A.
so that
B.
the moment
C.
as long as
D.
in case
【单选题】You’d better take this book. It is very good ( ) it’s a bit expensive.
A.
though
B.
and
C.
but
D.
so
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