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问题 多项选择题

属于冷切割中的水射流切割方法的特点是（）。

A．可用来加工焊缝坡口

B．适用热敏的贵金属加工

C．在易燃易爆场合使用安全

D．设备简单、使用灵活

答案

参考答案：B, C

解析：

冷切割中的水射流切割方法适用热敏的贵金属加工，在易燃易爆场合使用安全。

完形填空

基础训练篇（9）

Walt Disney, a great film-maker, was born in Chicago in 1901 (1)_________ died in 1966. (2)__________ a young man, he wanted very much to be an artist. He went to a newspaper office in the hope (3)__________ getting a job there, (4)_________ he had no luck.

He didn’t lose heart. He kept on (5)______________ (draw) lots of pictures. Being poor, he had to sit in the family garage（车库）,drawing pictures. Day (6)_________ day, he worked hard. Several years (7)____________, he succeeded in (8)______________ (make) his first cartoon character — Mickey Mouse. From then (9)______________ , he became a successful cartoon maker. Many characters in his cartoons are very popular, such as Mickey Mouse and Donald Duck, (10)_____________ are loved by everyone, especially by children.
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选择题

__________ , some students tend to develop a range of unhealthy habits .

A．Parents don’t watch over them

B．Not having watched over

C．With no parents to watch over them

D．Parents watched over
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