乙二醇精制系统停车后,系统合格排放的标准是()。
A、≤0.5%
B、≤0.4%
C、≤0.3%
D、≤0.2%
参考答案:D
检查阴茎头和阴茎颈时,应注意观察的项目不包括()
A.表面色泽
B.有无充血水肿
C.有无自主活动
D.有无结节
E.有无溃疡
—Kitty, will you go to see the film Iron ManⅡ this evening?
—No, I won't. I it already. [ ]
A. saw
B. have seen
C. see
D. will see