试题与答案

测量误差是()存在的,但又是可以控制的。A.客观 B.主观 C.测量 D.实际

题型:单项选择题

题目:

测量误差是()存在的,但又是可以控制的。

A.客观

B.主观

C.测量

D.实际

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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③向Ba(OH)2溶液中逐滴加入NH4HSO4溶液至刚好沉淀完全:

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⑤硫化钠的水解:S2+ 2H2OH2S + 2OH

A.①②

B.②③

C.③④

D.④⑤

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题型:完形填空
阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
I was six when I joined my father's fields in Okla. By the time I was eight, I was helping Dad   36  old furniture. He gave me a cent for every nail I   37  out of old boards. I got my first real job, at JM's Restaurant when I was 12. My main responsibilities were   38  tables. At that age, it was   39  going to work and glimpsed at my friends run off to swim or play. I didn't necessarily like work, but I loved what working   40  me to have. Because of my job, I was always the first one to buy something delicious. This made me   41  .
Word that I was trustworthy and hard-working   42  around town. A local clothing store offered me credit despite my young age. I immediately bought an expensive coat and shoes on credit. I was   43  only 65 cents an hour, and I already owed the store keeper $90!
So I learned   44  the danger of easy credit. I paid it off as soon as I could. My first job taught me   45  and brought me a level of personal satisfaction few of my friends had   46 . As my father, who worked three jobs, once told me, “If you understand sacrifice and   47  , there are not many things in life you can't have.” How right he was.
小题1:
A.makeB.paintC.sellD.repair
小题2:
A.pulledB.putC.pickedD.pressed
小题3:
A.sweepingB.packingC.clearingD.emptying
小题4:
A.easyB.heavyC.difficultD.pleasant
小题5:
A.allowedB.preferredC.taughtD.managed
小题6:
A.proudB.richC.gratefulD.hopeful
小题7:
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小题9:
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小题11:
A.lostB.improvedC.developedD.experienced
小题12:
A.responsibilityB.promiseC.independenceD.ambition
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题型:问答题

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承包合同约定:
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(2) 业主自第一个月起,从承包商的工程款中按5%的比例扣留保留金;
(3) 当子项工程实际工程量超过估算工程量10%时,可进行调价,调整系数为0.9;
(4) 根据市场情况规定价格调整系数平均按1.2计算;
(5) 监理工程师签发月度付款最低金额为25万元;
(6) 预付款在最后两个月扣除,每月扣50%。
承包商每月实际完成并经监理工程师签证确认的工程量如下表所示。
各月实际完成的工程量 (单位:m3)

月份1234
甲项500800800600
乙项700900800600
问题:

预付款是多少

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