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【简答题】
增值税的零税率是指（ ）。
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皮皮学刷刷变学霸
举一反三
【简答题】读module8单词,上传录音
【简答题】外研版九年级下册英语分层训练Module8达标测试卷答案
【单选题】Which of the following is true according to the two passages?
A.
Walk'n Roll to School Day is a tradition in the community.
B.
On Walk'n Roll to School Day cycling racing will be held.
C.
Melissa works in Danielle's son's school.
D.
Melissa is Danielle's old friend.
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【判断题】Generally speaking, offline shopping could offer better aftersale service.
A.
正确
B.
错误
【单选题】Suppose T1(N) = O(f (N)) and T2(N) = O(f (N)). Which of the following are true? Please give the proof. E2.2 on page 89
A.
T1(N) + T2(N) = O(f (N))
B.
T1(N) − T2(N) = o(f (N))
C.
T1(N) / T2(N) = O(1)
D.
T1(N) = O(T2(N))
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