Before a problem can be solved, it must be obvious ________ the problem itself is.[ ]A. whatB. thatC

题目简介

Before a problem can be solved, it must be obvious ________ the problem itself is.[ ]A. whatB. thatC

题目详情

Before a problem can be solved, it must be obvious ________ the problem itself is.
[     ]
A. what  
B. that
C. which 
D. why
题型:单选题难度:中档来源:同步题

答案

A

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