下列各数：3%，-|-5|，213，-0.12，-（-3.14），0，23，中，

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问题填空题

下列各数：3%，-|-5|，

，-0.12，-（-3.14），0，23，中，属于负数的有______，属于分数的有______，属于非负整数的有______．

答案

负数的有-|-5|，-0.12，属于分数的有 3%，

，-0.12，属于非负整数的有0，23．

故答案是：-|-5|，-0.12；3%，

，-0.12；0，23．

填空题

用所给词的适当形式填空

1. My sister always_______(learn) language very quickly, but she isn't able to learm Greek.

2. When our teacher______( come) into the room, we were talking.

3. I ________ ( be ) sixteen years old next year.

4. Jim and Kate______( marry) for 10 years.

5. The American friends_______( visit ) Beijing last spring.

6. By ten o'clock yesterday evening, they______( watch)TV for 12 hours.

7. Our teacher hoped that we______(succeed) some day .

8. The students _______( make) great progress in their spoken and writing English in the

last two months.

9. My friend______( work) here since he graduated fromthe college.

10. Lily told me not to give up ______ ( study) English.

填空题

设置引入的外部路由的花费值(metric)，在OSPF配置模式下，使用( )命令。