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【判断题】
在元素周期表中,每一周期元素的数目等于相应元素原子的最外层轨道中最多可容纳的电子数。A.
正确
B.
错误
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举一反三
【单选题】________his famous number 23 shirt, Michael Jordan became the most successful basketball player in the history of the game.
A.
wearing
B.
wears
C.
worn
D.
To wear
【单选题】Jordan began his professional basketball carer________________.
A.
when he was only a freshman
B.
when he was chosen to join the Chicago Bulls
C.
after he won a gold medal in the Barcelona Olympics
D.
after he got his Bachelor of Arts degree
【单选题】Jordan kept his illness from his opponents before the final game ________ they might know about it.
A.
now that
B.
on condition that
C.
for fear that
D.
in order that
【简答题】Jordan had 3 hits in his first 4 baseball s and 4 hits in his next 4 s. What is the average number of hits Jordan had in all of his s?
【判断题】Jordan began his professional basketball career when he was chosen to join the Chicago Bulls.
A.
正确
B.
错误
【单选题】使用下列哪种语句可以修改数据库（ ）
A.
CREATE DATABASE
B.
CREATE TABLE
C.
ALTER DATABASE
D.
ALTER TABLE
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