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【判断题】
盐基性铅盐类热稳定剂可用于PVC透明制品。A.
正确
B.
错误
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【简答题】在短周期元素中:原子核外电子总数是其最外层电子数 2 倍的元素是 ____,原子电子层数和核外最外层电子数相等的元素是 ____,最外层电子数为电子层 2 倍的元素是____.
【简答题】在短周期元素中:原子核外电子总数是其最外层电子数 2 倍的元素是 ________ ,原子电子层数和核外最外层电子数相等的元素是 ________ ,最外层电子数为电子层 2 倍的元素是 ________ .
【简答题】Thomas Edison could never be happy only because someone said he was a genius. "There is no such thing as genius," Edison said, He said that what people called genius was mostly hard work. From his ear...
【单选题】What was the one thing Bill said he enjoyed? 查看材料
A.
His friends' company．
B.
Supporting his team．
C.
Eating some food．
【单选题】听力原文：M: Charles enjoyed his two-week drive through South China. W: Yes, he said that he saw much more than he would have travelling by bus or train. How did Charles travel?
A.
By car.
B.
By plane.
C.
By bus.
D.
By train.
【单选题】—He said he enjoyed the quiet life of the country. —__________ and __________ .
A.
So did he; so did I
B.
So he did; so did I
C.
He did so; I did so
D.
Did he so; so I did
【单选题】听力原文：M: Charles enjoyed his two -week drive through South China. W: Yes, he said that he saw much more than he would have traveling by bus or train. Q: How did Charles travel? (19)
A.
By ear.
B.
By bus.
C.
By place.
D.
By train.
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