建设项目对环境的影响与( )因素有关。
A.建设项目的生产规模
B.建设项目的性质
C.建设项目的现代化程度
D.建设项目的人员素质
E.建设项目的技术水平
参考答案:A,B,E
今年初,我国部分城市连续出现雾霾天气,PM2.5指数偏高。PM2.5能穿过鼻腔进入肺部,甚至渗进血液,危害人体健康。请问:
(1)PM2.5入肺的通道:
鼻 → 咽→ → 气管 → 支气管 → 肺
(2)PM2.5通过肺泡进入血液后首先到达人体心脏的 ,随后经过 (选填“体”或“肺”)循环到达组织细胞,危害健康。
You have a large,broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however,unless there are special circumstances().
A.the towing vessel should slip first
B.the vessel towed should slip first
C.they should slip simultaneously
D.either vessel may slip first