妇女保健的行政机构
A.医政处
B.以上都对
C.妇幼卫生处
D.预防保健处
E.司法处
参考答案:C
如图所示,从倾角为θ的斜面上的M点水平抛出一个小球。小球的初速度为v0,最后小球落在斜面上的N点,下列判断中错误的是
A.可求出M、N之间的距离
B.不可以求出小球什么时刻与斜面间的距离最大
C.可求出小球运动的时间
D.可求小球落到N点时的速度大小和方向
It is said that people are ______ likely to tell lies over the phone as they are in emails. [ ]
A. as twice
B. twice as
C. twice more
D. twice than