依次填入下列横线处的语句，最恰当的一组是[ ] 这个时候，我喜欢登上老房子，_

A Bluetooth device can be either a master or a slave and any of the devices within a (1) can be the master. There is only one master and there can be up to (2) active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to (3) parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to (4) mode before it can become active. Within a network, all (5) communications are prohibited.

4（）

A．master

B．standby slave

C．parked slave

D．active slave

情景交际。根据问句，选择正确的答语。

1. — Good evening!

    — ______! [ ]

A. Good evening

B. Good day

C. Good morning

D. Good afternoon

2. — Where is Tokyo?

    — ______. [ ]

A. It's in Germany

B. It's in Japan

C. It's from France

D. It's from Brazil

3. — How do you spell "box"?

    — ______. [ ]

A. It's a box

B. B-O-X, box

C. Yes, I do

D. Sorry, I don't

4. — How old is she?

    — ______. [ ]

A. I'm twelve

B. She has nine apples

C. It's 6890351

D. She's ten

5. — What color are these shoes?

    — ______. [ ]

A. It's green

B. It's nice

C. They're brown

D. They're yours

下列哪些抗心律失常药物可以引起心室有效不应期延长（）

A.丙吡胺

B.美西律

C.索他洛尔

D.胺碘酮

E.利多卡因

在Word中，中文简体/繁体转换时我们可以设置（）来显示我们自己定义的词汇。

A.工具—语言—中文简繁转换—自定义词典

B.工具—语言—设置语言—自定义词典

C.工具—语言—同义词库—自定义词典

D.工具—语言—翻译—自定义词典

简述MHC分子的生物学功能？