化工设备装配图中,螺栓联接可简化画图,其中所用的符号可以是()。
A.细实线+
B.细实线x
C.粗实线+
D.粗实线x
参考答案:C, D
《千金方》中主治虚劳肺痿的方剂是()
A.利湿退黄
B.活血散瘀
C.清热泻火
D.泻下通腑
E.凉血止血
It was not until she got home ____ Jennifer realized she had lost her keys. [ ]
A. when
B. that
C. where
D. before