近视镜
望远镜
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- 1only tow /that's all/just
- 2设函数f(x)=x^3+ax^2-a^2x+1,g(x)=ax^2-2x+1,其中实数a不等0
- 3请举出反例说明下列命题是假命题. 负数和负数的差是负数 有三个有理数a、b、c,若ab=ac,则b=c
- 4Thanksgiving Day is usually a family day.People have big dinners and give thanks.In our daily life,
- 5学校食堂10月份和11月份用煤量的比是5:6,两个月共用煤3/4吨,两个月各用多少吨煤?
- 6共有A,B,C,D,E,F,G,H8个数成等差数列,若中间数D,E的和为16,则这8个数的平均数是多少?这8个数的和又是多少
- 7He was caught ____the rain when he was walking in the street.为什么用in
- 8古代女子跳舞描写
- 9英语翻译
- 10连词成句1.her,it,dictionary,is not 和2.school,ID,card,it,my,is not,no