第5题: [单项选择]China's economic reform is aimed at separating enterprises from the government. It has been implemented for almost 20 years, but breakthroughs ______. A. have been made yet B. have yet to make C. have yet to be made D. to have yet made 参考答案:C 答案解析:排除法:首先,根据句意,显然是说尚未取得突破,排除A;根据主动和被动关系可排除B、D两项。
第12题:[单选题]某肺结核病患者,胸片示右上肺浸润性病灶,并出现薄壁空洞,痰菌涂片阳 性,应诊断为: A. 浸润型肺结核,痰菌涂片(+),进展期 B. 浸润型肺结核,痰菌涂片(+),稳定期 C. 原发型肺结核,痰菌涂片(+),进展期 D. 原发型肺结核,痰菌涂片(+),稳定期 E. 慢性纤维空洞型肺结核,痰菌涂片(+),进展期 参考答案:A