题型:填空题 阅读下列表格中的内容,然后选择正确答案: Xinle No.1 Junior High School Monday Tuesday Wednesday Thursday Friday 8:10 English EnglishMathChineseBiology 9:00 MathMathSelf study (自习)MathSelf study 10:00 Biology BiologyChineseArt Math 10:40 Self study Art (美术) Physical activities (体育活动)BiologyEnglish12:20 LunchLunchLunchLunchLunch1:10Physical activities Self study English Self study Physical activities 2:00 Chinese Chinese Biology (生物) English Chinese 1. They have ________ subjects (科目). [ ]A. 2 B. 3 C. 4 D. 5 2. They have _______ lessons at 10:00 on Wednesday morning. [ ]A. Art B. Biology C. Chinese D. Physical activities 3. They begin their Math lesson at _______ on Thursday morning. [ ]A. 8:10 B. 9:00C. 9:50 D. 10:40 4. What time do they have Art class on Tuesday? [ ]A. 9:00 B. 10:00 C. 2:00 D. 10:40 5. On Friday morning students don't have ________ class. [ ]A. Biology B. Chinese C. Math D. English 查看答案
题型:填空题 下列关于乳酸菌和酵母菌的叙述,正确的是①二者产生ATP的方式相同 ②二者具有相同的膜系统组成 ③二者的遗传物质都是DNA ④二者合成蛋白质的场所相同[ ]A.①②B.②③C.③④ D.①④ 查看答案
题型:填空题 “灰蒙蒙的天”让越来越多的中国人关注一个专业术语“PM2.5”.“PM2.5”是指直径小于或等于2.5微米的颗粒,其颗粒直径相当于头发丝粗细的120,可直接被吸入到支气管内,引发呼吸系统、心血管系统等方面的疾病.我国区域性灰霾天气日益严重,与人为排放到大气中的悬浮颗粒物不断增加有关.(1)你认为空气中悬浮颗粒物的来源有哪些(写出两点)?(2)为控制“PM2.5”指数升高,请你提出一条好的建议. 查看答案