磷能使钢的()增加,但在冷加工中易断裂,称为冷脆性。
A.韧性
B.塑性
C.强度
D.硬度
参考答案:C, D
甲在下班途中遇到一只无人带领的小狗,遂将其带回家中,后来得知该小狗是乙家所有,但甲并未归还。一日,甲的儿子因为生气踢了小狗一脚,小狗将其咬伤,打狂犬疫苗花了150元。几日后,乙得知自家小狗在甲家、上门索狗。下列选项哪个是正确的( )
A.甲可以不归还小狗B.甲应该归还小狗,但可以索要报酬C.甲应该归还小狗,但可以索要小狗的饲养费D.甲应该归还小狗,但可以索要小狗的饲养费与儿子打针的费用
阅读下面的短文,将划线句子翻译成中文。
1. Today life is much better than before. Vision phone (可视电话) is used in some provinces. Maybe it
will be used in every family. People can have an examination about their health without a doctor or a nurse
in the room. 2. Now some people do some shopping at home.
3. And how about our education? There have been more educational (教育的) programs on the radio,
on TV or on the Internet. Some children live very far away from their schools, more and more of them
don't need to go to school every day now. They can study at home. 4. Teachers teach them on the Internet.
In the future, each family will have a robot. 5. Robots will help people with their housework. In some
years people can have a trip on the moon and some people can live under the sea in hot summer.
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