题目

In Beijing Marathon, I experienced what runners call “hitting the wall” at around the 36-kilometer point. A _______pain stabbed(刺) in my hip, my pace slowed down and every brain cell seemed to be screaming “Stop!”A. aggressive B. specificC. sharp D. diverse 答案:【答案】C【解析】考查形容词辨析。句意:在北京马拉松比赛中,我在大约36公里处经历了跑步者所说的“撞墙”。我的臀部突然一阵尖锐的刺痛,我的步伐放慢了,每个脑细胞似乎都在尖叫:“停!” A. aggressive侵略性的;B. specific特殊的;C. sharp尖锐的;D. diverse不同的。根据句意故选C。pg某结晶水合物A·nH2O,受热失去全部结晶水后,质量变动qg,由此可以得到该结晶水合物的分子量为                                                               
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