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【判断题】
800 电话业务的通话费由主、被叫分摊付费,400 电话业务的通话费由被叫用户承担。A.
正确
B.
错误
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举一反三
【单选题】I don’t remember how many years ago_________people began to grow pine apples here.A．it was whenB．
A.
40．I don’t remember how many years ago_________people began to grow pine apples here. A．it was when
B.
it was that
C.
was it when
D.
was it that
【简答题】为了解决 IP 地址浪费现象 , 可行的方案是( )。
【单选题】Hi, I'm Amy. I get up at 6:30. I have breakfast at 7:10, then I go to school at 7:40. I have four classes in the morning and two in the afternoon. I have lunch at school at 12:10. And I go home at 3:3...
A.
6:30
B.
7:10
C.
7:40
【单选题】Hi, I'm Amy. I get up at 6:30. I have breakfast at 7:10, then I go to school at 7:40. I have four classes in the morning and two in the afternoon. I have lunch at school at 12:10. And I go home at 3:3...
A.
5:00 p.m
B.
12:10
C.
8:30 p.m
【简答题】80g Ca 2+ 的物质的量是 mol 。
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