把一个小球轻轻放入盛有水的杯子里,溢出了50g的水,则小球的质量 [ ]
A.一定等于50g
B.一定大于50g
C.小于或等于50g
D.大于或等于50g
D
No one has come up with a better explanation of why dinosaurs _____.[ ]
A. died away
B. died for
C. died of
D. died out
佛教在中国的各宗派中,在民间影响最大的是( )。
A.净土宗
B.禅宗
C.密宗
D.律宗