问题:There are some health problems that, when ________
提问者:1X54D
详细内容:

There are some health problems that, when ________ in time, can become bigger ones later on.

 A. not treated                                                            B. not being treated     

 

C. not to be treated                                                  D. not having been treated

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回答者:1X54D       回答时间:2015-04-17 11:06:46
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