十进制整数100转换为二进制数是A．1100100 B．1101000 C．1100 发布时间：2018-01-09 19:45 │ 来源：www.tikuol.com 题型：单项选择题 问题： 十进制整数100转换为二进制数是A．1100100B．1101000C．1100010D．1110100
题型：单项选择题 We think it’s probably a good idea for parents to allow teenagers ____in groups during the evenings. I know we get ____sometimes, but we learn a lot from each other. We also think that vacations should be ____.At present they’re too short. Longer vacations would give us time to do things like volunteering. ___summer I had an opportunity ___at the local hospital, but I couldn’t because I had to go back to school.小题1:A．to watchB．to studyC．studyD．play小题2:A．noisyB．quietC．crowdedD．lonely小题3:A．shortB．quickerC．longerD．slower.小题4:A．LastB．NextC．BeforeD．In小题5:A．volunteeringB．to volunteerC．volunteeringD．volunteered 查看答案
题型：单项选择题 对下列加点词解释全都正确的一项是（ ）①独立寒秋，湘江北去。（离开） ②漫江碧透，百舸争流。（水深而清）③鹰击长空，鱼翔浅底。（水清而浅） ④携来百侣曾游。（携：带，拉着；来，助词）⑤忆往昔峥嵘岁月稠。（山势高峻） ⑥粪土当年万户侯。（以……为粪土）A．①③⑥B．②③⑤C．③④⑥D．②④⑥ 查看答案
题型：单项选择题 某研究机构研制出一种可预防某种传染病的新疫苗，为观察该疫苗的流行病学预防效果，应观察下列何种人群（）A.隐性感染率高的人群B.预期发病率低的人群C.免疫水平高的人群D.预期发病率高的人群E.预期患病率低的人群 查看答案