热拌沥青混合料路面应待摊铺层自然降温至表面温度低于()后,方可开放交通。
A.40℃
B.45℃
C.50℃
D.55℃
参考答案:C
(2013·扬州一中三模)—How do you think I can make up with Johnson?
—Set aside ________ you disagree and try to find ________ you have in common.
A.what; what
B.where; what
C.what; which
D.where; which
FLASH图像的对比度取决于下列哪几个因素()
A.激发脉冲角度
B.TR
C.TE
D.平均次数
E.矩阵大小