二沉池出水氨氮和磷酸盐应达到国家有关排放标准,一级排放标准要求氨氮和磷酸盐分别小于(

题型:单项选择题

问题:

二沉池出水氨氮和磷酸盐应达到国家有关排放标准,一级排放标准要求氨氮和磷酸盐分别小于()。

A.15mg/L,0.5mg/L

B.20mg/L,1mg/L

C.25mg/L,1.5mg/L

D.25mg/L,0.5mg/L

考点:污水处理工考试污水处理工综合练习污水处理工综合练习题库
题型:单项选择题

根据句意及所给首字母、汉语提示或提示词在每题的空白处填入一个适当的词。

小题1:Bridge Street is very busy, and it’s a g       place to have fun.

小题2:Johnny Dean used to wear glasses, but he doesn’t wear them any m _   _.

小题3:Rapid Fire is an_  _ (动作) movie that interests a lot of people.

小题4: The alien had thick __ (棕色的) hair and big green eyes.

小题5:The main      (意思) of his words is to stop it from happening again.

小题6:She didn’t always think      ( 仔细地)about what she was doing.

小题7:The __ (own) of the house doesn’t want to sell it at a low price.

小题8:Jingmen produces one      (eight) of Huhei’s rice.

小题9: He took out pieces of old bread and      (feed) the birds.

小题10: Having the right equipment at hand will be very       (help).

题型:单项选择题
A boy was walking home from school when he saw a large, tempting (诱人的)apple on one of the branches of an apple tree hanging out over a tall fence. The boy wasn’t much of a fruit-eater,  41 a bar of chocolate if given the choice,     42   , as they say, the forbidden fruit can be tempting. Seeing the apple, the boy wanted it. The more he looked at it, the    43   he felt and the more he wanted that apple.
44  as high as he could , but even at his tallest  45  he was unable to touch it. He began to  46 up and down , as high as he could, at the  47 of each jump stretching his arms to get the apple . Still it remained out of  48 .
Not giving up , he thought , if only he had something to  49 on . His school bag wouldn’t give enough height and he didn’t want to  50  the things inside , like his lunch box , pencil case , and Game boy . Looking  51 , he hoped he might find an old box , a rock , or ,   52 luck , even a ladder , but it was a tidy neighborhood and there was nothing he could use .
He had tried everything he could think to do .   53  seeing any other choices , he gave up and started to walk   54 . At first he felt angry and disappointed thinking about how hungry he had become from his 55 , and how he really wanted that apple . The more he  56 like this , the more unhappy he became.
57   ,the boy of our story was a pretty smart guy, even if he couldn’t always get what get he wanted .He started to say to himself .,This isn’t   58    , I   don’t have the apple and I’m feeling miserable as well. There’s  59  more I can do to get the apple_that is unchangeable-but we are supposed to be able to  60 our feelings. If that’s the case, what can I do to feel better?
小题1:
A.preferringB.offeringC.receivingD.allowing
小题2:
A.soB.thenC.butD.or
小题3:
A.sadderB.angrierC.hungrierD.tastier
小题4:
A.expandingB.stretchingC.swingingD.pulling
小题5:
A.strengthB.lengthC. rangeD.height
小题6:
A.jumpB.lookC.walkD.glance
小题7:
A.tipB.stageC.topD.level
小题8:
A.hopeB.handC. sightD.reach
小题9:
A.putB.standC.get D.hold
小题10:
A.breakB. shakeC.takeD.strike
小题11:
A.upB.forwardC.down D.around
小题12:
A.forB.withC.onD.of
小题13:
A.AfterB.ThroughC.WithoutD.Upon
小题14:
A.backB. awayC.upD.down
小题15:
A.wishesB. beliefsC.effortsD.goals
小题16:
A.thoughtB. imaginedC.triedD.claimed
小题17:
A.ThereforeB.HoweverC.MoreoverD.Otherwise
小题18:
A.skillfulB.cheerfulC.harmfulD.helpful
小题19:
A.somethingB.anythingC.everythingD.nothing
小题20:
A.changeB.expressC.forgetD.describe
题型:单项选择题

在棉花收获和加工过程中,主要应避免哪类物质的混入?

题型:单项选择题

开关电器是负载的控制设备()。

题型:单项选择题

在总结社会主义改造实践经验的基础上,毛 * * 与党和国家的其他领导人提出了著名的“三个主体、三个补充”的要求。这一要求,意味着在我国经济发展的过程中,在发挥公有制经济和计划经济的作用的同时,也要()

A、发挥国家宏观调控对经济的基础性作用

B、发挥非公有制经济和市场的作用

C、发挥市场对资源配置中的基础性作用

D、加强政府对经济的调控和干预作用

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