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【单选题】
汽车在弯道上行驶时,一般先发生()不稳定现象。A.
横向滑移
B.
横向倾覆
C.
横向滑移和倾覆同时发生
D.
不知道
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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____.
【单选题】What was the one thing Bill said he enjoyed?
A.
His friends' company.
B.
Supporting his team.
C.
Eating some food.
【多选题】短周期元素中，A元素原子最外层电子数是次外层电子数的2倍；B元素最外层电子数是其内层电子总数3倍；C元素原子次外层电子数等于其原子核外电子总数的一半；D元素原子最外层有1个电子，D的阳离子与B的阴离子电子层结构 相同，则4种元素原子序数关系中正确的是( )
A.
C＞D＞B＞A
B.
D＞B＞A＞C
C.
A＞D＞C＞B
D.
B＞A＞C＞D
【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 ________ .
【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 traveling by bus or train. Q: How did Charles travel? (19)
A.
By ear.
B.
By bus.
C.
By place.
D.
By train.
【简答题】Bob went to Beijing during the Spring Festival. He ( ) come back from Beijing. He went there ( ) and enjoyed the beautiful ( ) on the way. He found that Beijing's ( )...
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