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某综合性医疗机构排放经消毒处理后的污水,其水质检测结果为:粪大肠菌群≤900MPN/L,氯化法总余氯&l

某综合性医疗机构排放经消毒处理后的污水,其水质检测结果为:粪大肠菌群≤900MPN/L,氯化法总余氯<3.5mg/L,消毒接触时间≥1.0小时,未检出肠道致病菌。经调查发现该医疗机构用氯化法消毒污水,经一级处理的污水加氯量为10~20mg/L;经二级处理的污水加氯量为15~25mg/L。该医疗机构污水的日常监测方法为:每日检测总余氯一次,每月检测粪大肠杆菌一次,未检测肠道致病菌。该医疗机构对污水消毒效果进行日常监测,正确做法应该是A、每日检测总余氯1次,每周检测粪大肠杆菌1次,每月检测肠道致病菌不得少于2次B、每日检测总余氯2次,每月检测粪大肠杆菌1次,每年检测肠道致病菌不得少于2次
C、每日检测总余氯2次,每月检测粪大肠杆菌2次,每年检测肠道致病菌不得少于2次
D、每日检测总余氯1次,每月检测粪大肠杆菌2次,每年检测肠道致病菌不得少于1次
E、每日检测总余氯1次,每月检测粪大肠杆菌1次,每年检测肠道致病菌不得少于1次
该医疗机构所排放污水中未达到《医疗机构污水排放要求》中的标准值的指标是A、粪大肠菌群
B、肠道致病菌
C、总余氯
D、结核杆菌
E、消毒接触时间
该医疗机构用氯化法消毒污水的加氯量错误,正确的做法应该是A、经一级处理的污水,加氯量为10~20mg/L;经二级处理的污水,加氯量为15~25mg/L
B、经一级处理的污水,加氯量为20~30mg/L;经二级处理的污水,加氯量为10~20mg/L
C、经一级处理的污水,加氯量为30~50mg/L;经二级处理的污水,加氯量为15~25mg/L
D、经一级处理的污水,加氯量为40~60mg/L;经二级处理的污水,加氯量为15~25mg/L
E、经一级处理的污水,加氯量为50~70mg/L;经二级处理的污水,加氯量为30~50mg/L
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单项选择题
A century ago, the immigrants from across the Atlantic inclued settlers and sojourners. Along with the many folks looking to make a permanent home in the United States came those who had no intention
Today, we are much more rigid about immigrants. We divide nemcomers into two categories: legal or illegal, good or bad. We hail them as Americans in the making, or our broken immigrantion system and the long political paralysis over how to fix it. We don’t need more categories, but we need to change the way we think about categories. We need to look beyond strick definitions of legal and illegal. To start, we can recognize the new birds of passage, those living and thriving in the gray areas. We might then begin to solve our immigration challenges.
Crop pickers, violinists, construction workers, entrepreneurs, engineers, home health-care aides and physicists are among today’s birds of passage. They are energetic participants in a global economy driven by the flow of work, money and ideas .They prefer to come and go as opportunity calls them , They can manage to have a job in one place and a family in another.
With or without permission, they straddle laws, jurisdictions and identities with ease. We need them to imagine the United States as a place where they can be productive for a while without committing themselves to staying forever. We need them to feel that home can be both here and there and that they can belong to two nations honorably.
Accommodating this new world of people in motion will require new attitudes on both sides of the immigration battle .Looking beyond the culture war logic of right or wrong means opening up the middle ground and understanding that managing immigration today requires multiple paths and multiple outcomes. Including some that are not easy to accomplish legally in the existing system.
“Birds of passage” refers to those who____ .
A.immigrate across the Atlantic.
B.leave their home countries for good.
C.stay in a foreign temporialy.
D.find permanent jobs overseas.
It is implied in paragraph 2 that the current immigration system in the US____ .A.needs new immigrant categories.
B.has loosened control over immigrants.
C.should be adopted to meet challenges.
D.has been fixed via political means.
According to the author, today’s birds of passage want___ .A.financial incentives.
B.a global recognition.
C.opportunities to get regular jobs.
D.the freedom to stay and leave.
The author suggests that the birds of passage today should be treated ____ .A.as faithful partners.
B.with economic favors.
C.with regal tolerance.
D.as mighty rivals.
Select the title that is most suitable for the articleA.come and go: big mistake.
B.living and thriving : great risk.
C.with or without : great risk.
D.legal or illegal: big mistake.
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