题目内容

随着计算机技术的发展,当今对程序设计的要求是()

A. 紧凑性
B. 技巧性
C. 开放性
D. 适应性

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Do you like watching stars? Do you (31) time watching the sky on the Mid-autumn Day every year? On this (32) day in 2003, Mars attracted more attention than the moon.The earth and Mars are two planets, far from each other. They run in different orbits (33) the sun. The earth was (34) with Mars in August and September. And on August 27, Mars was the closest to the earth in 60,000 years. It was only 55.76 million kilometers (35) from the earth on that day. The next time Mars (36) come so close to the earth is in 2287.Mars became brighter around that day. By looking (37) telescopes, sky watchers (38) that they saw Mars’ south polar cap(冰帽). It is made of (39) water and dry ice. It reflects sunlight well. “I can see the polar ice clearly using my 8-inch telescope,” says Ron Wayman from the USA.Soon after the sunset, Mars rose from the east. The fans of Mars didn’t stop watching Mars (40) the next morning when the sun rose and Mars set. 33()

A. around
B. on
C. above
D. off

() he come, he would have known the truth.

A. Should
B. Were
C. Had
Did

— Do you enjoy your present job?— (). I just do it for a living.

A. Of course
B. Not a little
C. Not likely
D. Not really

工件毛坯采用()是单件生产类型的工艺特征。

A. 冷冲压件
B. 金属压铸件
C. 自由锻件
D. 模锻件

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