在血气分析仪中，PO₂电极氧气分压为零时，电路中电流并不为零。存在一个微小的电流值，通常称其为（）

A.电流

B.微电流

C.微电压

D.基流

E.噪音

根据句意及汉语提示写出单词，完成句子。

1. The Hills are such good ___________ (主人).

2. They're busy ___________ (组织) a special meeting.

3. I have his phone number in my ___________ (地址) book.

4. I don't like the ___________ (短裤) because they're too tight.

5. The boss has ___________ (安排) all his business affairs before going on holiday.