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【单选题】
()年以上的债券为长期债券A.
7
B.
8
C.
9
D.
10
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A.
Yes, I am
B.
Do you know him?
C.
I am speaking
D.
This is Jill speaking
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C.
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D.
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A.
Please make an appointment
B.
Sure. Come in and sit down
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Not right now. I’m busy
D.
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