[单项选择]风湿性二尖瓣狭窄早期的X线表现是() A. 左心房增大 B. 右心室增大 C. 左心室缩小 D. 右心房增大 E. 主动脉结缩小
参考答案:A
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第1题: [单项选择]第一节
听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。What does the man meanA. He hates red shoes.B. He doesn’t like them as well as the blue ones.C. He likes the blue ones better. 参考答案:C 答案解析:[听力原文]
W: I think I’ll wear my red shoes and skirt to the party tonight.
M: Can’t you wear your bl
第32题: [多项选择]鼻源性化脓脑膜炎的病因可能是() A. 鼻腔鼻窦感染的直接扩散 B. 机体免疫力低下 C. 手术损伤脑膜 D. 淋巴扩散 E. 血液扩散 参考答案:A, B, C
第33题: [单项选择]If you have really been studying English for so long, it' s about time you __ able to write letters in English. A. should be B. were C. must be D. are 参考答案:B 答案解析:句型 It is time that 后面的动词应使用过去时。