听力原文:M:I ran into our friend Mark yesterday on the street,and he said he hadn't heard from you for two months. W:Yes,I know.But I've been too busy to phone him. Q:What do we learn from the conversation? (15)
A.
The woman received a phone call from Mark yesterday.
B.
The man injured Mark in a traffic accident yesterday.
C.
The man met a friend by chance.
D.
The woman contacted Mark on business.
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参考答案:
举一反三
【单选题】营养学上依据食品在人体中代谢产物的酸碱性,一般将食品分成酸性食品和碱性食品.其中显碱性的酸性食品是( ) A B C D 食品 鸡蛋清 葡萄 苹果 草莓 食品类别 酸性食品 碱性食品 碱性食品 酸性食品 pH 7.6-8.0 3.5-4.5 2.9-3.3 3.0-3.5