根据下图选择出正确答案()
A.起点节点
B.有多余虚工作
C.编号有误
D.起点有误
参考答案:A, C
If only I _____ as young as you are. [ ]
A. were
B. am
C. will be
D. should be
能使呼吸产生大蒜气味的是()
A.有机磷杀虫药
B.氰化物
C.苯酚
D.来苏儿
E.镇静催眠药