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问题
单项选择题
（）最多能支持四个E1接口。
A.CDM-600
B.CDM-570（L）
C.CDM-625
D.CDM-550
答案
参考答案：C
选择题
—______?
—My name is Lily.
A. What colour?
B. What's your name?
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选择题
Mr. White ____ his racing bicycle by himself yesterday, but I am not sure whether it is ready.
A. repaired
B. had repaired
C. was repairing
D. would repair
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