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【简答题】
用数字0、1、2、3、4、5组成没有重复数字 (1)可以组成多少个六位数? (2)可以组成多少个能被3整除的四位数? (3)可以组成多少个大于324105的六位数?
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参考答案:
举一反三
【判断题】表面活性剂的泡沫性能分为起泡性能和稳泡性能( )。
A.
正确
B.
错误
【简答题】How is the 'local food' generally believed to help protect the environment? Why does the author say that 'local food may turn out to be even less green'? (para. 7)
【简答题】肺炎球菌肺炎常见于:() A老年人 B儿童 C青壮年 D少年 E婴儿
【判断题】表面活性剂的泡沫性能分为起泡性能和稳泡性能( )。
A.
正确
B.
错误
【判断题】Ultralso支持音乐光碟()
A.
正确
B.
错误
【多选题】包装袋两侧应根据水泥的品种采用不同的颜色印刷水泥名称和强度等级,其中()采用红色印刷。
A.
粉煤灰水泥
B.
硅酸盐水泥
C.
普通硅酸盐水泥
D.
复合硅酸盐水泥
【单选题】How does Josh help homeless people?
A.
By giving them some food.
B.
By giving them some money.
C.
By giving them a chance to talk.
D.
By giving them haircuts for free.
【单选题】Why does Josh help homeless people?
A.
Because he can practice his skills.
B.
Because his help can make them feel good.
C.
Because other people don’t want to help.
D.
Because these people like his haircuts.
【单选题】How does Josh help homeless people?
A.
By giving them some food.
B.
By giving them some money.
C.
By giving them haircuts for free.
D.
By giving them a chance to talk.
【判断题】加热杀菌温度用巴氏杀菌温度,在低温条件下储藏的肉制品是低温肉制品。
A.
正确
B.
错误
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