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搜题
【单选题】
（）是指个人练习或分组练习。A.
分散练习
B.
集中练习
C.
练习
D.
综合练习
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举一反三
【简答题】Point out the problems of the following sentences, and then revise them. 1) Ron tries to call home once a week. To stay in touch with his parents. 2) Andy forgot the time he missed the final exam. 3) ...
【单选题】已知一棵二叉树的先序遍历结果为ABCDEF,中序遍历结果为CBAEDF,则后序遍历的结果是( )。
A.
CBEFDA
B.
FEDCBA
C.
CBEDFA
D.
不确定
【简答题】Point out the problems of the following sentences, and then revise them. 1) Ron tries to call home once a week. To stay in touch with his parents. 2) Andy forgot the time he missed the final exam. 3) ...
【单选题】We are not supposed ______ basketball on Sundays.
A.
to play
B.
playing
C.
with playing
D.
played
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