﹣Yuan Longping， a famous Chinese scientist， is now doing research on sea rice．
﹣If farmers____ start planting rice in salty water， China's food supply will surely rise．（ ）
A．canB．can'tC．mustD．mustn't
﹣Yuan Longping， a famous Chinese scientist， is now doing research on sea rice．
﹣If farmers____ start planting rice in salty water， China's food supply will surely rise．（ ）
A．canB．can'tC．mustD．mustn't
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