题目内容
_______, the disease diphtheria would produce a powerful poison that would kill the paient.
| A.If untreated | B.If it untreated | C.To be untreated | D.If being untreated |
A
解析
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题目内容
_______, the disease diphtheria would produce a powerful poison that would kill the paient.
| A.If untreated | B.If it untreated | C.To be untreated | D.If being untreated |
A
解析