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【判断题】
贴现债券中,票面上不规定利率,发行时按照规定的利率,以低于面值的价格发行,到期按照面值支付本息的债券。A.
正确
B.
错误
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【单选题】If powerful measures ______, this area would have been badly polluted.
A.
aren't taken
B.
haven't been taken
C.
weren't taken
D.
hadn't been taken
【简答题】I ____________(mustn't have/couldn't have / wouldn't have) parked in the No Parking area on Tuesday, because I was at a meeting in Cairo.
【单选题】在C#中,如果类C继承自类B,类B继承自类A,则以下描述正确的是( )。
A.
C 仅继承A或B中的成员
B.
C只继承了B中的成员
C.
C只继承了A中的成员
D.
C不仅继承了B中的成员，同样也继承了A中的成员
【单选题】You ___ smoke here because it is not smoking area. A. mustn't B. couldn't C. don't have to
A.
mustn＇t
B.
couldn＇t
C.
don＇t have to
【简答题】Trip 1 Black Bear Count There have been fires in this area in the last few years and the Office of the National Park is not sure how many black bears are still living. Some bears have been seen since...
【单选题】.In the country area about one in ten ______ have enough to eat.
A.
haven’t
B.
aren’t
C.
hadn’t
D.
didn’t
【单选题】—Look! There is no grass and no soil in this area.What a sad _______! —Yes, we have to do something to change it.
A.
situation
B.
show
C.
scene
D.
chore
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