第33题: [单项选择]收缩时使声带紧张度增加()。 A. 环杓后肌 B. 环杓侧肌和杓肌 C. 环甲肌 D. 甲杓肌 E. 杓会厌肌 参考答案:C 答案解析:(1)~(5)环杓后肌为声带外展肌,起自环状软骨板背面的浅凹,止于杓状软骨肌突后面;环杓侧肌和杓肌为声带内收肌,环杓侧肌起于同侧环状软骨弓上缘,止于杓状软骨肌突的前面,杓肌附着在两侧杓状软骨上;环甲肌
第34题: [单项选择]Not until many years later ______ known. A. was the whole truth become B. did the whole truth become C. the whole truth became D. the whole truth had became 参考答案:B 答案解析:Not until置句首,主谓倒装。