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
