几种动物静脉注射的注射量范围(ml)是()。
A.小鼠0.2~0.5
B.大鼠1.0~2.0
C.豚鼠1.0~5.0
D.家兔3.0~10
E.以上都是
参考答案:E
We ______ at five o'clock in the afternoon. [ ]
A. have lunch
B. go to bed
C. go home
D. get up
已知(x2+px+8)与(x2-3x+q)的乘积中不含x3和x2项,求p、q的值.