人体最容易缺乏的矿物质是钙。

用it, that, this或者one完成句子。

1. The Parkers bought a new house but ____ will need a lot of work before they can move in.

2. I hate ____when people talk with their mouths full.

3. The chairman thought _____necessary to invite Professor Smith to speak at the meeting.

4. I like____ in the autumn when the weather is clear and bright.

5. — I saw no more than one motor-car in that shop. Will you go and buy ____?

    — No, I'd rather find _____ in other shops.

6. I want to know _____: Has Mr. Jones been here the whole morning?

7. It is what you do rather than what you say ____ matters.

8. — Did you find your pen yesterday?

    — No, I didn't find ____. But I've bought ____.

9. — Excuse me, I want to have my watch fixed, but I can't find a repair shop.

    — I know___ nearby. Come on, I'll show you.

10. It is the ability to do the job _____ matters not where you come from or what you are.

支架上装设的配电箱，应安装牢固并便于操作和维修；引下线应穿管敷设并做（）。

患者女性，45岁，因左侧面颊部皮肤及左侧舌部黏膜发红、起疱3天，伴剧痛来诊。查体：体温38.5℃，左侧面部皮肤及左侧舌背、颊黏膜可见粟粒大小的密集成片的透明水疱，周围皮肤黏膜可见充血性红斑。化验：红细胞7.8×10⁹/L，中性62%，淋巴34%。拟诊断为带状疱疹。

本病例可发生的最严重的并发症为

A．肺炎

B．脑炎

C．结膜炎

D．角膜炎

E．面瘫

炉拱的作用之一是促使炉膛中（）的混合以及组织辐射并使灼热的烟气流动。

A、气体

B、烟

C、煤

D、温度