The lions are very ____ and I don't like them.[ ]
A. lazy
B. cute
C. smart
D. clever
答案:A
250×0.38=25×______5.374÷0.34=______÷34.
用单位面积上所受的力来表示压力时的单位为()。
A、mmHg
B、kg/cm2
C、MPa