题目：
Dick _ in America, but he has been _ Chinese food since he moved to China.
A．used to live; used to eating
B．is used to live; used to eat
C．is used to live; used to eating
D．used to living; used to eat
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A,B解析：A："有偿献血"，是中国人粉饰卖血的华美辞藻。"有偿献血"实为血液买卖合同，不违反公序良俗，有效。B：名为捐献，实为买卖，"捐献"肾脏一个，有救死扶伤之效，买卖合同有效。C：黄某贴出广告...
