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【判断题】
在平衡分配系数 K<1 的合金中,由于逆偏析,使得合金铸件表层范围内溶质的浓度分布由外向内逐渐降低。A.
正确
B.
错误
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举一反三
【单选题】The whole passage centerson_____________.
A.
choosing a career according to what one is skilled in.
B.
acquiring knowledge by working hard at school.
C.
finding one’sstrong and weak points.
D.
developing one’s abilities useful in school work.
【简答题】S5. The whole passage tells us that by ignoring most of the sound around us we miss much that could give us
【简答题】S5. The whole passage tells us that by ignoring most of the sound around us we miss much that could give us
【简答题】Listening to the following passage and write the whole passage on answer sheet. (5) .mp3
【简答题】passage 2.mp3 Passage 2 Spas are becoming more 1 _____ in the US. Last year, Americans visited spas a record of 2 _____ times, and spent about 3 _____ dollars. There are two trends in the spas. One tr...
【简答题】passage 2.mp3 Passage 2 Spas are becoming more 1 _____ in the US. Last year, Americans visited spas a record of 2 _____ times, and spent about 3 _____ dollars. There are two trends in the spas. One tr...
【简答题】Write a summary for the following passage. The following points may help you. 1. Read the original text carefully to grasp the theme of the whole article and the main idea of each paragraph. 2. List t...
【简答题】Write a summary for the following passage. The following points may help you. 1. Read the original text carefully to grasp the theme of the whole article and the main idea of each paragraph. 2. List t...
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