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【简答题】
下列有关说法中正确的是_____。 A: 氟利昂(CC12F2)因破坏大气臭氧层，会导致“温室效应” B: 在即将到来的新能源时代，核能、太阳能、氢能将成为主要能源 C: 根据分散系是否具有丁达尔现象，将分散系分为溶液、胶体和浊液 D: 单质在盐溶液中不可能发生化合反应
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举一反三
【简答题】Now listen again. Then fill in the chart below about which descriptions are true for Sara and Jason. Check (√) the boxes.
【简答题】Now listen again. The best job for him from the Classified Jobs is _________.
【简答题】Now listen again. Then you are going to hear some statements. Decide whether they are true or false.
【简答题】Now listen again. Then listen to some statements. Decide whether they are true or false. Put T or F in the brackets.
【单选题】The old pianist wouldn't listen to our repeated request that he ________ in public again. [ ]
A.
play
B.
played
C.
would play
D.
was going to play
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