Food safety issues, ____ will seriously affect the growth of teenagers and even
题型：不详难度：来源：
Food safety issues, ____ will seriously affect the growth of teenagers and even the nation’s future. | A．if not solved properly | | B．not if solved properly | | C．if solved properly | | D．not if properly solved |
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答案
| A |
解析
| 考查非谓语动词。根据句意，此处应为否定，排除C. 非谓语动词的否定词not应放在非谓语动词的前面，故排除B和D. 故A项正确。等于if they are not solved properly, ….。 |
举一反三
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