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问题 单项选择题

某项发盘于某月12日送达受盘人，但在此前的11日，发盘人发传真通知受盘人，发盘无效，此行为属于______。

A．发盘的撤回 B．发盘的修改 C．一项新发盘 D．发盘的撤销

答案

参考答案：A

选择题
已知p和q是两个不相等的正整数，且q≥2，则
lim
n→∞
(1+
1
n
)p-1
(1+
1
n
)q-1
=（　　）
A．0B．1C．
p
q
D．
p-1
q-1
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单项选择题

Speaker A.. How about the food I ordered I've been waiting for 20 minutes already.Speaker B: ______

A．I'm very sorry, sir. I will be back with your order in a minute.

B．Ok. I will bring it to you in a moment.

C．Don't worry. It will be ready soon.

D．Sorry, but I think you should have ordered it earlier.
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