细支气管肺泡癌起源于() A.主支气管黏膜上皮细胞 B.小支气管黏膜上皮细胞 C.支 发布时间:2017-05-02 07:50 │ 来源:www.tikuol.com 题型:单项选择题 B型题 问题: 细支气管肺泡癌起源于()A.主支气管黏膜上皮细胞B.小支气管黏膜上皮细胞C.支气管腺体D.Ⅱ型肺泡上皮细胞E.Kulchitsky细胞
题型:单项选择题 B型题 During the war there was a serious lack of food. It was not unusual that even the wealthy families had to () bread for days.A. eat upB. give awayC. do withoutD. deal with 查看答案
题型:单项选择题 B型题 甲、乙两船分别在河的上游和下游,且两船相距90公里,如果两船相向而行,2小时后相遇:如果同向向下游航行。则10小时后甲船追上乙船。问在静水中甲船的速度是乙船的多少倍A.1.2 B.1.5 C.1.8 D.2 查看答案