题干
My cousin doesn't like baseball at all，so he plays it．
A：always
B：usually
C：sometimes
D：never
答案(点此获取答案解析）
D
My cousin doesn't like baseball at all，so he plays it．
A：always
B：usually
C：sometimes
D：never
pC(g)达到平衡后，压缩容器的体积，发现A的转化率随之降低，下列说法中，正确的是