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阅读理解。 Some day you may go to the moon. A tall rocket will take you into space. The rocket flies a long way to a space station. You will stop there for a short time. Then a big spaceship will take you to the moon. About three days later,the ship slowly goes down and gets to the moon. You are now on the moon, but you can not leave your spaceship. You must put on a space suit for the moon.It is very hot in the day and very cold at night.If you don't wear a space suit,you can't live there. You jump out of the spaceship and begin to walk.The moon is much smaller than the earth. The things on the moon are lighter than those on the earth. You jump high in the air every time you take a step. The moon moves slowly, so one day on the moon is as long as two weeks on the earth and one night is just as long as two weeks on the earth. It never rains on the moon, and everything on the moon is dry. There are no trees or other living things of any kind. There is nothing to do there. The earth is a far better place to live on,but scientists are trying to make the best of the moon. 1. How can you go into space? By __ . A. plane B. spaceship C. rocket D. space suit 2. How can you get to the moon? A. By rocket I can go into space. B. It will take me a long time to get to the moon by rocket. C. The rocket will take me to the space station and by spaceship I will get there. D. A and C. 3. Which is right? A. Days are longer but nights are shorter on the moon. B. Days are shorter but nights are longer on the moon. C. Days are shorter than nights on the moon. D. 28 days on the earth is as long as two days on the moon. 4. There is no life on the moon because __ . A. the moon moves very slowly B. there is no air or water C. night is hotter but day is colder D. the moon is much smaller than the earth 5. On the moon if you are in a space suit you can move __ than on the earth. A .more easily B. harder C. more slowly D. more quickly
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【单选题】测定 HCl 和 H 3 PO 4 混合溶液中各组分的浓度,取两份此溶液,每份 25ml ,分别用 NaOH(0.2500mol/L) 标准液滴定,第一份用甲基红为指示剂,消耗 NaOH 标准液 30.00ml ,第二份用百里酚酞为指示剂,消耗 NaOH 标准液 40.00ml ,溶液中 HCl 与 H 3 PO 4 的浓度关系为( )
A.
c H3PO4 =c HCl
B.
c H3PO4 =2c HCl
C.
2c H3PO4 =c HCl
D.
3c H3PO4 =c HCl
【单选题】运用动态控制原理进行建设工程项目进度控制时,首先应进行的工作是( )。
A.
收集工程进度实际值
B.
采取纠偏措施进行纠编
C.
进行工程进度的计划值和实际值的比较
D.
进行工程进度目标的逐层分解
【判断题】设备层计算建筑面积。
A.
正确
B.
错误
【单选题】应用动态控制原理进行建没工程项目目标控制时,产生的纠偏可采取多种纠偏措施,下列纠偏措施中不属于管理措施的是( )。
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调整管理职能分工
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采取限额设计的方法
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收集工程进度实际值
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采取纠偏措施进行纠偏
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调整工程进度目标
D.
进行工程进度目标的逐层分解
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A.
正确
B.
错误
【单选题】下面是关于中和滴定的实验叙述:取25mL未知浓度的HCl溶液,下列操作中有错误的是()。a.放入锥形瓶中,此瓶需事先用蒸馏水洗净。b.并将该瓶用待测液润洗过。c.加入几滴酚酞作指示剂。d.取一支酸式滴定管,经蒸馏水洗净。e.直接往其中注入标准NaOH溶液,进行滴定。f.一旦发现溶液由无色变成粉红色,即停止滴定,记下数据。
A.
d、e、f
B.
b、d、e、f
C.
b、d、e
D.
b、c、e、f
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工程合同价
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施工成本规划
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实际支付的工程款
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投标价
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采取限额设计的方法
B.
调整管理职能分工
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采用价值工程的方法
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强化合同管理
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