场地平整工程量按( )计算。
A.底层外墙中心线面积B.底层外墙轴线面积C.底层外墙勒脚以上外边线面积D.底层外墙勒脚以上外边线面积另加2m所围面积
参考答案:C
Scientists are increasely _____ that the earth is getting hotter because of carbon dioxide and other gases.
A.content
B.conscious
C.convinced
D.common