建设工程必须在固定场地按施工工艺要求连续生产,使得职业健康安全与环境管理具有( )。
A.交替性B.统一性C.互补性D.协调性
参考答案:D
Mr. Smith has bought a new house in the country, around _____ some green trees.
A.which is
B.it is
C.which are
D.them are
睡眠呼吸暂停综合征夜间主要症状是()
A.憋醒
B.性功能减退
C.遗尿
D.夜游
E.打鼾