The doctor will not carry out the operation it is necessary. [ ] A. as B. if C.
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![The doctor will not carry out the operation it is necessary. [ ] A. as B. if C.](/pic/43_960623.jpg)
The doctor will not carry out the operation _______ it is necessary.
[ ]
A. as B. if
C. for D. unless
试题答案
答案:D
![The doctor will not carry out the operation it is necessary. [ ] A. as B. if C.](/pic/43_960623.jpg)
The doctor will not carry out the operation _______ it is necessary.
[ ]
A. as B. if
C. for D. unless
答案:D