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【单选题】
某电厂与某运输公司签订了两份运输保管合同:第一份合同载明的金额合计50万元(运费和保管费并未分别记载);第二份合同中注明运费30万元、保管费10万元。已知:运输合同印花税税率0.3‰,保管合同1‰,则该电厂签订两份合同应缴纳的印花税税额的下列计算中,正确的是
A.
300000×0.3‰+100000×1‰=190(元)
B.
500000×1‰=500(元)
C.
500000×1‰+300000×0.3‰+100000×1‰=690(元)
D.
(500000+300000+100000)×1‰=900(元)
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举一反三
【单选题】A humorous piece of writing can make the reader's emotional responses untrustworthy because ______.
A.
it expresses the truth of the sadness of human life with a sparkling surface
B.
everyone has his happy moments and unhappy moments
C.
there is an obvious line between laughing and crying
D.
it is like poetry, very rhythmic
【简答题】根据某些条件对一个关系作水平分解,选择符合条件的元组组成一个新的关系,这样的操作称为( )。 A)投影 B)选择 C)等值连接 D)自然连接
【单选题】根据某些条件对一个关系作水平分解,选择符合条件的元组组成一个新的关系,这样的操作称为
A.
投影
B.
选择
C.
连接
D.
自然连接
【单选题】听力原文:W: Michael, would you like to eat out tonight? M: Oh, I'd really like to, but I have promised my sister to see a movie with her tonight. Q: What will the man do this evening? (4)
A.
To visit his sister.
B.
To eat out with the woman.
C.
To see a movie with his sister.
D.
To eat out with his sister.
【单选题】氨茶碱的平喘机制是
A.
激活腺苷酸环化酶
B.
抑制腺苷酸环化酶
C.
激活磷酸二酯酶
D.
抑制磷酸二酯酶
【单选题】— I like speaking better than listening in English learning. —Oh, really? I think you should be good at of them.
A.
both
B.
neither
C.
some
D.
all
【单选题】–I am twelve and I like English. -- Oh, really? I am twelve and I like English.
A.
also; also
B.
too; too
C.
also; too
D.
too; also
【单选题】根据某些条件对一个关系作水平分解,选择符合条件的元组组成一个新的关系,这样的操作系称为
A.
投影
B.
选择
C.
连接
D.
自然连接
【单选题】氨茶碱的平喘机制是
A.
抑制细胞内钙释放 ;
B.
抑制 磷酸二酯酶 ;
C.
抑制磷酯酶 A2;
D.
激活腺苷酸环化酶 ;
E.
抑制鸟苷酸环化酶
【单选题】氨茶碱的平喘机制是
A.
抑制磷酸二酯酶
B.
激活磷酸二酯酶
C.
激活腺苷酸环化酶
D.
抑制鸟苷酸环化酶
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