被称为救脱要药的是
A.益智仁
B.蛤蚧
C.杜仲
D.当归
E.人参
参考答案:E
— I haven't seen Tom these days. Where is he?
— He _____ Japan.[ ]
A. has been to
B. has gone to
C. has been in
D. went to
如图是一个骑自行车的人与一个跑步的人在运动时的路程随时间变化的图线,根据该图线能够获得合理的信息有:
例如:他们是同时开始运动的;
信息一:______;
信息二:______.