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【单选题】
下列选项中,哪个可以正确地将表名 tb_grade 修改为 grade
A.
ALTER TABLE grade RENAME TO tb_grade;
B.
ALTER TABLE tb_grade RENAME TO grade;
C.
ALTER TABLE grade RENAME tb_ grade;
D.
SHOW CREATE TABLE grade
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【判断题】中国的华为公司目前在海外设立了十余家研发中心,比如2016年在法国布洛涅市设立数学研究中心,因此华为是一家跨国公司。
A.
正确
B.
错误
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【单选题】The media and the cinema have played a role in promoting the image of the mad scientist．
A.
Right
B.
Wrong
C.
Not mentioned
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【简答题】阅读理解。 There are all kinds of trains in the world. There are trains to carry people, trains to carry animals or carry things. There are fast trains and slow ones. Some trains go through hills. In big c...
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【单选题】This will __________ pressure on the trains to some extent.
A.
reveal
B.
recover
C.
relieve
D.
reassure
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【简答题】写作。 和你的同班同学一起讨论。 Which place do you want to go in Beijing? Why? Please write down.
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【简答题】What is the main idea of the passage? A) It is unwise to place the results of scientific research in the hands of a powerful mad man. B) The more knowledge one has, the wiser one becomes. C) Any incre...
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【单选题】What is the philosophy underlying the function of science according to the author?
A.
Scientists are better teachers financially supported by the state.
B.
Science makes people of high class engaged in noble professions.
C.
People of lower class are eager to get rid of the poison of blind belief.
D.
Harmful ideas and behaviors are counterbalanced by science.
查看完整题目与答案
【判断题】Passengers on ordinary trains can smoke at some specific areas on the trains.
A.
正确
B.
错误
查看完整题目与答案
【单选题】On some trains, if a passenger wants to get off, he has to ______.
A.
inform. the driver
B.
show his ticket
C.
press a button
D.
read a map
查看完整题目与答案
【单选题】2010年9月28日美国路易斯安那技术大学的研究人员针对工业“飞尘”研制出环保耐用的地质聚合物水 泥，与传统的硅酸盐水泥相比，具有更大的张力，更强的抗腐蚀、抗压性和抗收缩性，并能抵御高温。以下对硅酸盐水泥的叙述中，不正确的是 [     ]
A.
是硅酸盐、铝酸盐、石膏等物质的混合物，可以用强度等级来表示水泥的不同性能
B.
水、水泥、细砂的混合物叫水泥砂浆，又称为混凝土
C.
具有水硬性，在水中和空气中都能硬化，硬化是一个复杂的物理化学变化过程
D.
水泥的热膨胀系数几乎跟钢铁一样
查看完整题目与答案
相关题目：
【判断题】中国的华为公司目前在海外设立了十余家研发中心,比如2016年在法国布洛涅市设立数学研究中心,因此华为是一家跨国公司。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The media and the cinema have played a role in promoting the image of the mad scientist．
A.
Right
B.
Wrong
C.
Not mentioned
查看完整题目与答案
【简答题】阅读理解。 There are all kinds of trains in the world. There are trains to carry people, trains to carry animals or carry things. There are fast trains and slow ones. Some trains go through hills. In big c...
查看完整题目与答案
【单选题】This will __________ pressure on the trains to some extent.
A.
reveal
B.
recover
C.
relieve
D.
reassure
查看完整题目与答案
【简答题】写作。 和你的同班同学一起讨论。 Which place do you want to go in Beijing? Why? Please write down.
查看完整题目与答案
【简答题】What is the main idea of the passage? A) It is unwise to place the results of scientific research in the hands of a powerful mad man. B) The more knowledge one has, the wiser one becomes. C) Any incre...
查看完整题目与答案
【单选题】What is the philosophy underlying the function of science according to the author?
A.
Scientists are better teachers financially supported by the state.
B.
Science makes people of high class engaged in noble professions.
C.
People of lower class are eager to get rid of the poison of blind belief.
D.
Harmful ideas and behaviors are counterbalanced by science.
查看完整题目与答案
【判断题】Passengers on ordinary trains can smoke at some specific areas on the trains.
A.
正确
B.
错误
查看完整题目与答案
【单选题】On some trains, if a passenger wants to get off, he has to ______.
A.
inform. the driver
B.
show his ticket
C.
press a button
D.
read a map
查看完整题目与答案
【单选题】2010年9月28日美国路易斯安那技术大学的研究人员针对工业“飞尘”研制出环保耐用的地质聚合物水 泥，与传统的硅酸盐水泥相比，具有更大的张力，更强的抗腐蚀、抗压性和抗收缩性，并能抵御高温。以下对硅酸盐水泥的叙述中，不正确的是 [     ]
A.
是硅酸盐、铝酸盐、石膏等物质的混合物，可以用强度等级来表示水泥的不同性能
B.
水、水泥、细砂的混合物叫水泥砂浆，又称为混凝土
C.
具有水硬性，在水中和空气中都能硬化，硬化是一个复杂的物理化学变化过程
D.
水泥的热膨胀系数几乎跟钢铁一样
查看完整题目与答案