摘要： The problem requires . A. studying with great care B. to study carefully C. to be studied without carelessness D. taking great care of studying it
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The problem requires ______.
A. studying with great care B. to study carefully
C. to be studied without carelessness D. taking great care of studying it
查看习题详情和答案>>The problem requires ______.
|
A．studying with great care |
B．to study carefully |
|
C．to be studied without carelessness |
D．taking great care of studying it |
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