电气设备不允许()运行。
参考答案:无保护
引起旅游者腹泻的主要大肠埃希菌是()
A.ETEC
B.EAggEC
C.EIEC
D.EHEC
E.EPEC
I came here with your mother _____ to see you. [ ]
A. specially
B. special
C. especially
D. especial