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【简答题】
Directions : Read the following text. Choose the best word or phrase for each numbered blank and mark A, B,C, or D on ANSWER SHEET1. The United States is a confederation of states. Each state has the (26) to make laws with re- gard to the state. (27) , based on public opinion, sates can (28) policies regarding education, and they may (29) a state income tax; they also determine the speed (30) , housing codes and the drinking age. In most parts of the United States, you (31) be 21 years old to buy alcohol in a liquor store, bar, (32) restaurant. In some states you may buy beer in a grocery store. If a store sells alcohol to a minor, the (33) 0f the store is usually (34) a large sum of money.(35) many areas have an open-container law, (36)means that people may not drink alco-hol on the street or in a car. Anyone (37) with an open container of alcohol may be arrested.(38) with all of these laws, the (39) 0f alcohol is a serious (40) in the United States and Canada. Drinking on college campuses, (41) there are many underage drinkers, has (42) greatly. In fact, alcohol sales have gone up (43) the legal drinking age was (44) from 18 to 21. Some people believe that if there were no legal drinking age, (45) in some other countries, North American youth would drink less. 26. [A] privilege [B] advantage [C] right [D] tradition
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【多选题】厌氧生物法的处理对象为
A.
高浓度有机废水
B.
低浓度有机废水
C.
城市污水处理厂的污泥
D.
粪便
【多选题】厌氧生物法的处理对象为
A.
高浓度有机废水
B.
粪便
C.
城市污水处理厂的污泥
D.
低浓度有机废水
【单选题】采用活性炭吸附法处理污水时,在吸附塔内常常有厌氧微生物生长,堵塞炭层,出水水质恶化。导致这种现象的原因可能是()
A.
进水中溶解氧的浓度过高
B.
废水在炭层中的停留时间过短
C.
进水中COD含量过高,使吸附塔的有机负荷过高
D.
气温或水温过低
【单选题】下列不属于人的不安全行为的表现的是?
A.
不戴安全帽进入化工生产厂区
B.
巡检时候累了,坐在压力管道上休息一会
C.
车间地面上有个盖板没有盖上
D.
电器总是过载跳闸,采用铜线代替保险丝。
【单选题】言语内容上的阻抗,常见形式有哪些
A.
理论性交谈
B.
情绪发泄
C.
假提问题
D.
以上都是
【判断题】厌氧生物处理法的处理对象为高浓度有机废水、城镇污水处理厂的污泥、动植物残体及粪便、生物质(如,秸秆等)。
A.
正确
B.
错误
【多选题】下列属于行为不安全的是
A.
天气太炎热,进入工地现场,可不戴安全帽
B.
戴安全帽影响发型,可不戴
C.
进入工地的安全路径太远,翻墙过去很快
D.
走安全通道太慢了,直接从上面攀爬下来
【多选题】厌氧生物法一般的主要处理对象为
A.
高浓度有机废水
B.
低浓度有机废水
C.
城市污水处理厂的污泥
D.
粪便
【多选题】厌氧生物法的处理对象为()。
A.
城市污水处理厂的污泥
B.
高浓度有机废水
C.
低浓度有机废水
D.
粪便
【单选题】下列不属于安全控制的目标的是( )。
A.
减少或消除人的不安全行为
B.
安全管理
C.
改善生产环境和保护自然环境
D.
对不安全行为进行惩罚
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