Which of the foHowing is different in meaning？A.Help me with the suitcase，please．B.Would you mind helping me with the suitcase？C.Is it all right for you to help me with the suitcase？D.You'd better help me with the suitcase．
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D
解析分析：本题中的A，B，C都是请求对方做事情的句型。而D项You'd better是“建议”对方做事情的句型。(延伸)请求对方做事情的句型有：Can you…，(please)？/Could you…，(please)？/Will you(please)．．．？/Would you(please)…？/祈使句(可以在句首加please，please后面不用逗号；也可以在结尾加please，please前面加逗号。)/祈使句+will you？(在will you前面加逗号)/Would you mind doing…？(在mind后面的动词要用doing形式)/Is it all right for you to do…？