A. Because they wanted to agree on certain signs B. As they needed to write them down C. Since they wanted to communicate with each other D. Now that they could combine them 参考答案:C 答案解析:[精解] 文章细节理解题。首先根据题干,可以迅速将该题定位在本文的第一段的第二句"...invented...so that they could communicate with each othe
第10题: [单项选择]女性,30岁,心悸、气短、下肢水肿1年。查体:呼吸困难,颈静脉怒张,心界向两侧扩大,有舒张期奔马律,心3/6级收缩期吹风样杂音,肝肋下3cm,X线:心影向两侧增大。经强心、利尿治疗2个月后,症状基本消失,心界明显缩小,心脏杂音较前减轻,奔马律消失,最可能的诊断是() A. 风湿性心脏病二尖瓣关闭不全 B. 急性心肌炎 C. 急性心包炎 D. 肥厚型梗阻性心肌病 E. 原发性扩张型心肌病 参考答案:E
第31题: [单项选择]Questions 33 to 35 are based on the passage you have just heard. A. Equivalent to a hydrogen bomb. B. Equivalent to tons of TNT. C. Equivalent to tons of hydrogen bombs. D. Equivalent to a ton of TNT. 参考答案:A 答案解析:[听力原文] 33-35 Thunderstorms are the least dangerous and least violent of all the storms. Almos