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【单选题】
有关喹诺酮类抗菌作用的叙述正确的是（）A.
嵌合到DNA碱基对之间，干扰其转录过程
B.
与DNA回旋酶结合，抑制其A亚基，从而阻碍DNA的复制
C.
治疗剂量时可明显抑制哺乳动物拓朴异构酶Ⅱ
D.
治疗剂量对哺乳动物的拓朴异构酶Ⅱ影响较小
E.
影响蛋白质合成全过程
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【单选题】What can we infer from the two poor homeless men?
A.
They were begging for something to drink.
B.
They bought coffee so that they could find themselves a shelter.
C.
They were so annoying and scared people away.
D.
They were homeless and was asking the author for help.
【简答题】we wish to insure the following leather shoes .......the PICC........WPA including TPND and FWRD........the amount of USD 3000.
【简答题】What does fizz (气泡) taste like? In Bubbly (多泡的)drinks such as sodas, tiny bubbles give the drink a lift--- and have a distinct taste, In a new study on mice, scientists have connected that fizzy-taste...
【单选题】We wish to insure this consignment ______ FPA for 110% of the invoice value.
A.
about
B.
in
C.
against
D.
of
【单选题】--- What’s wrong with my son, doctor? --- ____________ serious, just a slight cold. He’d better drink some water.
A.
Everything
B.
Nothing
C.
Something
D.
Anything
【单选题】利率和汇率的关系是()。
A.
汇率是两种货币之间的比价
B.
国际收支差额主要由两大部分构成：一是经常项目差额，二是资本项目差额
C.
汇率影响利率，主要通过国际收支的均衡变动引发
D.
利率是本币资金市场的一种价格信号
【简答题】由21÷7=3可知( )是( )和7的倍数,( )和7是( )的因数。
【单选题】利率和汇率的关系是()。
A.
汇率是两种货币之间的比价
B.
国际收支差额主要由两大部分构成：一是经常项目差额，二是资本项目差额
C.
汇率影响利率，主要通过国际收支的非均衡变动引发
D.
利率是本币资金市场的一种价格信号
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