题目: 有关结节性红斑不正确的是()A.半数以上患者无法找到明确的致病原因B.女性发病率为男性的3~5倍C.前期链球菌感染是常见诱因D.皮疹对称分布于小腿伸侧E.皮疹消退后局部可发生溃疡 答案: 参考答案:E
题型:填空题 下列事实与分子的性质有关,请把分子的性质填在相应的横线上。 ⑴ 人们常说:“酒香不怕巷子深。说明分子_____________;⑵ 20mL水和20mL酒精充分混合后体积小于40mL。说明分子间有______________;⑶ 1cm3的容器里,可容纳3×1022个水分子。说明____________。 查看答案
题型:填空题 用rise, arise, raise和arouse的适当形式填空。1. The speech made by Yu Dan__________ great attention.2. New difficulty will _________ from such situation.3. I was tired of the quarrel ___________between them.4. After the earthquake many volunteers ___________money for people in great need.5. My spirits__________ when I heard the good news.6. I saw tears___________ from her eyes. 查看答案