男性22岁,面部及两手掌Ⅱ度烧伤,其烧伤面积约为()。
A.3%
B.4%
C.5%
D.6%
E.7%
参考答案:C
关于电场强度与电势的关系,下面各种说法中正确的是( )
A.电场强度大的地方,电势一定高
B.电场强度不变,电势也不变
C.电场强度为零处,电势一定为零
D.电场强度的方向是电势降低最快的方向
This sweater fits me, but I can't afford to buy ________. I have to choose ________ which is cheap
enough for me.[ ]
A. it; that
B. that; it
C. it; one
D. that; the one