题型:选择题 This is one of the best films ______ this year.A. which has been shownB. that have been shown C. that have shown D. have been shown 查看答案
题型:单项选择题 中年男性,原有风湿性心脏病痛史,因持续发热、乏力、纳差来诊,拟诊为亚急性感染性心内膜炎,下列哪个体征不可能出现()A.环形红斑B.瘀点C.心脏杂音可以变化D.三度房室传导阻滞E.脾大伴脾区摩擦音 查看答案