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问题 选择题

某烃1mol完全燃烧生成4molCO2，且能与2mol氢气加成，该烃是下列中的

答案

答案：C

根据原子守恒可判断，烃分子中碳原子的个数是4。又因为能和2mol氢气加成，说明分子中含有2个碳碳双键，所以选项C正确，答案选C。

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短文填空（根据短文内容及首字母提示，补全空格内单词，使短文完整、通顺。共10小题：每小题1分，满分10分）

Tigers are dangerous and cruel animals. They are the bosses of the Asian jungles with their cleverness, quickness and s小题1: .A cat, on the o 小题2: hand, is a homebody that comforts us with its gentle warmth and calms us with its purring(猫叫声).

As a mother, there is no doubt that the Chinese-American writer Amy Chua is a tiger. Her book, Battle Hymn of the Tiger Mother,t 小题3: people about the strict raising she gave her two children. She thinks that being strict is the o 小题4: way to develop a child's potential(潜力)and to make them strong, independent and successful. Her kids were not allowed to watch TV or play video games. They were not allowed to "hang out" with other kids after school. They had to be the top students in their classes. And they had to practise playing the piano and violin for hours every day. As a r 小题5: , her kids became successful.

Chua says, I 小题6: her, most Asian mothers are tigers because they believe their children can achieve a lot if they're pushed hard enough. She says American mothers are really cats. They care m 小题7: about their children's self-esteem(自尊).They don't want to push their kids too hard for fear of hurting their feelings. American mothers e 小题8: their children to find their own path.

So, is a tiger mom better than a cat? Perhaps it depends on the differences b小题9: Asian and Western cultures. It may a 小题10: depend on the child himself. Some kids need to be pushed while others respond(反应)to a gentler hand. To growl or to purr? There is no easy answer.
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选择题

哲学对社会变革的作用是[ ]

A．一种巨大的物质力量

B．时代精神的精华

C．深远的、多方面的

D．是对一定时代的文化的反映
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