农民为庄稼施肥，主要为植株生长提供含______、______、_______的

空冷机组应保持（）真空。

用所给词的适当形式填空。

1. Look! Whose _____ (Walkman) are these? Perhaps they are the twin's.

2. Is there an _____ (electric) shop in your town?

3. Amy wants to buy some presents for _____ (they).

4. Would you please give me some _____ (write) paper to write on?

5. China is one of the the largest _____ (country) in the world.

6. There is a shopping mall _____(call) Sunnyside Shopping Mall here.

7. I don't have enough money to buy this one. Do you have any _____(cheap)

ones?

8. The girls in red _____ (dress) are from Japan.

9. Listen! Is he _____ (sing) an English song?

10. Mrs Wang often _____ (go)shopping.

下列不正确的转义字符是( )。

A．'\\'

B．'\t'

C．'\n'

D．'088'

临床上用20%甘露醇溶液降低颅内压正确的输液方法是

A．快速静推
B．1～2小时内静滴完250ml
C．缓慢静滴，防止高渗液产生静脉炎
D．输液速度控制在60～80滴/分
E．15～30分钟内静滴完250ml

马克思曾说，只要英国人“把机器应用于一个……国家……就无法阻止这个国家去制造这些机器了”。下列对于马克思这段话的理解，正确的是（）

A.殖民活动给殖民地带去严重灾难

B.工业革命加速殖民体系的崩溃

C.煤铁是一个国家获得独立的根本条件

D.殖民活动客观上传播了新生产方式