题目

Some false advertisements are taking the countryside woman as their targets, because they are easy to __________. A．take in        B．take on          C．take over         D．take up 答案：A18．离水平地面高为3.2m的地方，有一小球以某一初速度水平抛出，忽略空气的阻力，小球落地点与抛出点正下方的水平位移为6.4m，则小球落地时的速度与水平方向的夹角的正切值为（　　）A．$\frac{1}{2}$B．1C．$\frac{{\sqrt{3}}}{2}$D．$\frac{{\sqrt{2}}}{4}$