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【判断题】
图片大小处理，可以把大图片处理为小图片，也可以把小图片处理为大图片，效果都是一样的（）A.
正确
B.
错误
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举一反三
【单选题】I had a little trouble _____ English grammar. [ ]
A.
learn
B.
learned
C.
learning
D.
to learn
【单选题】It is important for us ______ English well. [ ]
A.
learn
B.
learned
C.
to learn
D.
to learning
【简答题】Only years later _____ the truth about the matter. A) I learned B) did l learn C) I did learn D) had I learned
【单选题】Do you have any trouble _______ English grammar? [ ]
A.
learn
B.
learned
C.
learning
D.
to learn
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