What can we infer about the survey in the fifth paragraph?
A.It is comprehensive and scientific.
B.The report findings are primitive.
C.Young men in New Jersey, Chicago, Houston, and Washington D.C like to delay marriage.
D.To be homosexual is the precondition for this survey.
第4题
在火力发电厂中,锅炉是生产蒸汽的设备锅炉的容量叫蒸发量蒸发量的单位是()
A.公斤/时
B.吨/时
C.千克/时
D.立方米/时
第6题
基础代谢率的表示方法是
A.千卡/(平方米体表面积·小时)
B.千卡/公斤
C.千卡/(米·小时)
D.千卡/(公斤·小时)
E.千卡/(平方米·分)
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