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scoff collapse glace at rumble dilemma meet up with reassuring pandemonium 选词填空 1. A hundred years ago people at the idea that man would ever fly. 2. She was in a as to whether to marry Paul, who was poor but smart, or Charles, who was rich but ugly. 3. Isabel appeared to be momentarily overcome by the heart and into the nearest chair. 4. There was s sheer in the dance hall when someone shouted “Fire!” 5. The doctor laid a hand on Steven’s arm. “There is nothing to worry about!” he said. 6. An echoing became a powerful roar as the volcano erupted. 7. During the meal he kept the door. Obviously expecting someone to walk in. Harry decided to call in at the bar to his pals, and have a few beers.
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举一反三
【判断题】由于α + β和β型钛合金都能发生同素异构转变,所以他们可进行热处理强化。
A.
正确
B.
错误
【简答题】丁烷的最稳定构象是( ),原因是( )最不稳定的构象是( ),原因是( )。
【简答题】( )是指对相邻双方的界址状况进行实地调查,经认可与审核后可作为土地登记的依据。
【单选题】()是国际象棋的起源。
A.
印度
B.
埃及
C.
玛雅
D.
中国
【单选题】丁烷最稳定的构象是
A.
对位交叉
B.
邻位交叉
C.
部分重叠
D.
全重叠
【判断题】α+β型钛合金可以进行热处理强化
A.
正确
B.
错误
【单选题】一般情况下,()钛合金不能热强化处理,必要时可进行退火处理,以消除应力。
A.
α型
B.
β型
C.
α+β型
D.
工业纯钛
【简答题】丁烷的最稳定构象是( ),原因是( )最不稳定的构象是( ),原因是( )。
【简答题】()网球场地是红土场地。
【单选题】2,3-二甲基丁烷的最稳定构象是
A.
A
B.
B
C.
C
D.
D