【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
【单选题】What does the word 'militant 'in Paragraph 4 mean?
【简答题】[A] respond [B] return [C] retort [D] reply
【简答题】A. to respond for B. to respond to C. responding for D. responding to
【单选题】The Presidents personal aircraft has become a potent symbol of economic and diplomatic power.