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【简答题】
Have you ever seen the man in the moon? If you look closely at the moon on some nights, you can see the face of the man in the moon. Some people say that they can see an old man carrying sticks. 小题1: These pictures are made by the mountains and plains of the moon. Long ago people in England used to tell their children that the moon was made of green cheese.小题2: The moon is a large round rock. It is completely bare. There are no trees or plants on the moon. There are no rivers or seas. There are no living things. It never rains on the moon, and everything is covered with dirty, white dust. 小题3: When the sun shines on it, the moon is very hot, in the shade, however, it is as cold as ice.小题4: It does not weigh as much as the earth. If you went to the moon, you would weigh six times less than you do now. 小题5: 仔细阅读短文,将下面五句话还原到文中空白处,并将其标号填入答题栏的相应位置。 A. Even a fat man would be able to jump high off the ground. B. The moon is much smaller than the earth. C. Everyone knows that this is not true. D. Not even a sound can be heard on the moon. E. Others say a girl is reading a book.
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举一反三
【单选题】研究萃取最简单的相图是()。
A.
二元相图
B.
三元相图
C.
四元相图
D.
一元相图
【判断题】常说的“负载大”是指用电设备的功率大。
A.
正确
B.
错误
【判断题】常说的“负载大”是指用电设备的功率大。
A.
正确
B.
错误
【多选题】单元系统专业相图的应用包括:
A.
SiO2系统的相图
B.
ZrO2系统的相图
【多选题】写出单元系统专业相图的应用:
A.
SiO2系统的相图
B.
​ZrO2系统的相图
【简答题】什么是相律?在二元合金相图中应用杠杆定律可以计算什么?
【单选题】下面()不是并联电路的特点。
A.
加在各并联支路两端的电压相等
B.
电路内的总电流等于各分支电路的电流之和
C.
并联电阻越多,则总电阻越小,且其值小于任一支路的电阻值
D.
电流处处相等
【简答题】研究萃取操作时,经常利用的最简单相图是( )。 A.二元相图 B.三元相图 C.四元相图 D.一元相图A. 二元相图 B. 三元相图 C. 四元相图 D. 一元相图
【简答题】什么是相图?二元合金相图表达了合金的哪些关系?
【判断题】常说的“负载大”是指用电设备的功率大。
A.
正确
B.
错误
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