柜员日终进行账实核对时，下列哪项是错误的（）。 A.核对现金 B.核对重要空白凭证

在反应3NO₂+H₂O=2HNO₃+NO中，H₂O（　　）

A．是氧化剂

B．是还原剂

C．既是氧化剂又是还原剂

D．既不是氧化剂也不是还原剂

根据句意及括号内的注释拼写单词。

1. Each of us will have a __________(one's own) computer in the future.

2. I was glad to __________ (to get or to be given sth.)a gift from my grandpa on Children's Day.

3. I was__________ (sleeping) when the UFO landed in front of my house.

4. She arrived in London on a cold morning. Three days__________ (at a time in the future),she found a

    job in a restaurant.

5. It's not only a chance but also a challenge for China to __________ (to become a member of a group)

    the WTO.

请指出GAC的含义？

下列哪项不是血瘀证的表现（）

A．面色黧黑

B．肌肤甲错

C．局部刺痛

D．唇甲青紫

E．头晕目眩

客房管制的核心是什么？