据最新统计,日本65岁以上老人约占日本总人口的比例为:()A.22.5% B.32. 发布时间:2019-07-02 07:47 │ 来源:www.tikuol.com 题型:单项选择题 问题: 据最新统计,日本65岁以上老人约占日本总人口的比例为:()A.22.5%B.32.5%C.45%D.50%
题型:单项选择题 确定正常人的某项指标的正常范围时,调查对象是()。A.从未患过病的人B.排除影响研究指标的疾病和因素的人C.只患过轻微疾病,但不影响被研究指标的人D.排除了患过某病或接触过某因素的人E.以上都不是 查看答案
题型:单项选择题 (1)用10倍放大镜看30°的角,你观察到的角是______.(2)用10倍放大镜看50°的角,60°的角,你观察到的角是______,______.(3)由(1),(2),你得到的结论是______. 查看答案
题型:单项选择题 选用方框内所给词的适当形式填空。you cross act child laugh1. The boy wants to be an ________ just like Jackie Chan. 2. Tony, believe ________ and you are sure to succeed. 3. We couldn't help ________ after we watched Zhao Benshan's funny performance. 4. You are supposed to look around when you walk ________ the street. 5. Chocolate is usually the ________ favorite food. 查看答案