与该病的发病因素无关的是()。
A.内分泌因素
B.免疫因素
C.遗传因素
D.精神因素
E.烟酒过度
参考答案:E
It’s already 10’clock. I wonder how it ____ that she was two hours late on such a short trip.
A.came over
B.came out
C.came about
D.came up
雇主责任保险的被保险人为()。
A.雇主
B.雇员