前段时间，在梅园小区发生了小偷入室盗窃案件，社区居民赶快通知了居委会。作为社区社会工

恶性肿瘤的生长方式多为

A．外生性或膨胀性生长
B．浸润性生长
C．两者都有
D．两者都无

根据句意，用括号内所给单词的适当形式填空。

1. Many Chinese have trouble using a knife and fork _________ (correct).

2. They will lose __________ (they) if they go down that path.

3. Are you satisfied with these __________ (dancer) performances in the opera?

4. When you feel tired, you'd better wear _________ (energy) colours, such as green.

5. Don't get _________ (patient) about your personal trouble.

在技术改造过程中施工管理时应注意什么？

现代高炉的内型由炉缸、（）、炉腰、炉身、炉喉五段组成。

有的空压机可以不设（）冷却。

A.滑油

B.级间

C.气缸

D.最后排气