()属于外国人临时住宿的类型。
A、林间露宿
B、单位留宿
C、山间露宿
D、无人管理的公共场地露宿
参考答案:B
The professor got a disease in blood for the _______ of fresh vegetables and fruit.
A.snake
B.lack
C.ignorance
D.minority
交接班要做到哪“三一”?