The doctor told him _______ more water. [ ]
A. drink
B. to drink
C. drank
D. drinking
答案:B
A.a处质点的振动图象
B.b处质点的振动图象
C.c处质点的振动图象
D.d处质点的振动图象
东南亚位于五带中的______带,全年高温,根据降水的不同,有______气候和______气候两种类型.