细菌有()种基本形态。 A.2 B.3 C.4 D.5 发布时间:2021-01-07 14:21 │ 来源:www.tikuol.com 题型:单项选择题 问题: 细菌有()种基本形态。A.2B.3C.4D.5
题型:单项选择题 看表格,选择正确答案。Amy's Class Schedule (课程表)LessonMondayTuesdayWednesdayThursdayFriday1EnglishEnglishEnglishEnglishEnglish2mathcomputersciencemathcomputersciencemath3P. E.artP. E.musicP. E.4swimmingmathswimmingmathswimminglunch 5 science science science science science 6 ChinesedanceChinesedanceChinese1. How many classes does Amy have every day?[ ]A. 4.B. 6.C. 7.2. Does Amy have Chinese on Thursday?[ ]A. Yes, she does. B. No, she isn't. C. No, she doesn't.3. What does Amy study in the fifth (第五节) lesson on Friday?[ ]A. English.B. Science.C. Swimming. 4. What doesn't Amy have on Tuesday?[ ]A. Art.B. Computer science.C. Swimming. 查看答案
题型:单项选择题 关于人造地球卫星,下列说法中正确的是( )A.卫星距离地面越高,卫星的周期就越大B.卫星距离地面越高,所受的万有引力越大C.卫星距离地面越高,卫星的速度就越大D.卫星做匀速圆周运动的速度大于第一宇宙速度 查看答案
题型:单项选择题 矿产资源的开发应推行循环经济的“污染物减量、资源再利用和循环利用”的技术原则,具体包括: A.发展绿色开采技术,实现矿区生态环境无损或受损最小; B.发展干法或节水的工艺技术,减少水的使用量; C.发展无废或少废的工艺技术,最大限度地减少废弃物的产生; D.矿山废物按照先提取有价金属、组分或利用能源,再选择用于建材或其它用途,最后进行无害化处理处置的技术原则。 查看答案