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问题 填空题

淘淘家六月份总收入二千五百元整，用正数表示为______元，交电话费180元，买书用去200元，两项支出用负数表示共______元，结余______元．

答案

淘淘家六月份总收入二千五百元整，用正数表示为+2500元，交电话费180元，买书用去200元，两项支出用负数表示共-380元，结余 2120元．

故答案为：+2500，-380，2120．

填空题

假如你是Judy，请你根据你的成绩单，给你妈妈写一封信，汇报你的成绩。

Dear Mom,

      How's it going? Things are fine here. I got my report card today. Luckily, I did OK this time.

My English teacher said I was    1      My math teacher said l was    2    and my P.E. teacher said 

I was     3    in class. However, my history teacher said I    4   . Another disappointing result was

in science. My science teacher said l was a    5    student.   

     Well, that's all about the news I have for now. I will have to try harder at science.

                                                                                                                                Love,

                                                                                                                                   Judy

1._____2._____3._____4._____5.______
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单项选择题

我国麻疹主动免疫的初种年龄是()

A．3个月

B．4个月

C．6个月

D．7个月

E．8个月
查看答案