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【单选题】
蒙古语地名 “布拉格”的意思是( )
A.
羊群
B.
C.
石头
D.
沙漠
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举一反三
【多选题】下列实验现象预测正确的是(双选)      (  )。
A.
实验Ⅰ:电流表A指针偏转,碳棒上有红色固体析出
B.
实验Ⅱ:电流表A指针偏转,铁极上有无色气体产生
C.
实验Ⅲ:碳棒上有无色气体产生,铁极上有黄绿色气体产生
D.
实验Ⅳ:粗铜溶解,精铜上有红色固体析出
【单选题】下列是混凝土强度的基本指标的是()A.混凝土弹性模量 B.混凝土轴心抗拉强度 C.混凝土变形 D.混凝土标号
A.
B
B.
B
C.
B
D.
B
【单选题】水电站1期混凝土;2.水电站2期混凝土;3.安装水轮机4.安装厂房行车5.安装发电机;6.安装尾水闸门,7.安装蜗壳和尾水管金属段。请问正确的水电站安装顺序是?
A.
1472356
B.
1472563
C.
1476235
D.
1476253
【判断题】某设备原价190000元,预计净残值10000元,预计使用年限5年,采用年数总和法计算第二年的折旧额为48000元。()
A.
正确
B.
错误
【单选题】If they are willing to lend us the money we need,all our problems will be__
A.
solved
B.
caused
C.
covered
D.
met
【单选题】The money will be used to buy US Government bonds, which will help bring down mortgage rates and free up ______ income.
A.
disposed
B.
disported
C.
disposing
D.
disposable
【单选题】下述实验能达到预期目的是(  )
A.
实验内容:将SO 2 通入酸性KMnO 4 溶液中;实验目的:证明SO 2 具有漂白性
B.
实验内容:测同物质的量浓度H 2 SO 4 和HIO 3 溶液的pH;实验目的:比较硫与碘元素的非金属性强弱
C.
实验内容:将铜与浓硝酸反应生成的气体收集后用冰水混合物冷却降温;实验目的:研究温度对化学平衡的影响
D.
实验内容:向某无色溶液中滴加酚酞试液;实验目的:确定该溶液为碱溶液
【单选题】某企业某设备原价20万元,预计使用10年,预计净残值率为10%,该设备年折旧额为( )元。
A.
17000
B.
18000
C.
16000
D.
19000
【单选题】The following argument involves acknowledging and refuting other viewpoints. Which part is the author’s refutation? Choose an appropriate answer.The probing of outer space has proved, and will still p...
A.
The probing of outer space has proved, and will still prove, crucial to us.
B.
As for the money spent on space programs, it is indeed enormous.
C.
But if we could stop all the wars on earth, there would be much more money than we could afford for the present and future space programs.
D.
All in all, the probing of outer space is one of the greatest missions man has ever set himself.
【单选题】The boy will be in deep water if he does not tell us where he spent the money. The underlined part means ______.
A.
pain
B.
sight
C.
trouble
D.
danger
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