下列选项中,大气污染现状监测周期和频次要求说法正确的是( )。A.一级评价项目不得

题型:多项选择题

问题:

下列选项中,大气污染现状监测周期和频次要求说法正确的是( )。

A.一级评价项目不得少于两期(夏季、冬季)

B.二级评价项目可取一期不利季节,必要时也应作两期

C.三级评价项目必要时可作一期监测

D.每期监测时间,一级评价项目至少应取得有季节代表性的七天有效数据

考点:环境影响评价工程师环境影响评价技术方法环境影响评价技术方法
题型:多项选择题

Travel can teach kids more  t 小题1: a textbook. Travelling with kids is good  f  小题2: them. They can find new interests. Travel makes information alive for kids and makes it much more exciting than studying textbooks or d 小题3:  experiments in the lab. While travelling, they learn how to deal with new situations, and communicate with other people. They learn patience, because sometimes it  t  小题4:  a long time to get to some exciting or interesting places.

I've been travelling s   小题5:    I was seven years old. For me, to stop t   小题6:    would be like taking something a  小题7:   from my soul(灵魂).  I can't live  w  小题8:      travelling and I won't be who I am if I don't travel. Some people think it's  h 小题9:   to travel after having kids. But in my opinion, when people become parents, it doesn't  m  小题10:   they can’t travel any more.

题型:多项选择题

法国第五共和国的总统的权力有( )

A.任免高级文武官员

B.在司法机关行使职权时,有权主持司法委员会

C.军事权

D.外交权

E.解散国民议会

题型:多项选择题

最有可能的诊断是

A.动脉导管未闭

B.冠状动脉瘘

C.主动脉窦瘤破裂

D.室缺合并主动脉瓣反流

E.不稳定心绞痛

题型:多项选择题

采用PID调节的自动控制系统,为实现纯比例作用,应该()。

A.全关比例阀和全关微分阀

B.全关比例阀和全关积分阀

C.全开微分阀和全关积分阀

D.所有调节阀全部关闭

题型:多项选择题

简述果蔬罐头原料热烫的目的及热烫方法。

更多题库