She _________ sports every day. Her mother _________ TV every day.[ ]

A. plaies; watches

B. plays; watchs

C. plays; watches

D. play; watch

土体的压缩性可用压缩系数a来表示

A.a越大，土的压缩性越小

B.a越大，土的压缩性越大

C.a的大小与压缩性的大小无关