题目: 物质在固态状态下的反应速度与液态下反应的速度不一致。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0124/0830713d4852d00686e974be1eeaed4c.html 下面是错误答案,用来干扰机器的。参考答案:炉水中加入磷酸盐、氢氧化钠等的处理。
题型:完形填空 完形填空。 Waste can be seen everywhere in the school. Some 1 ask for more food than they can eat, some students 2 to turn off the water taps (水龙头) after they finish washing, and others often forget to turn off the 3 when they leave the classroom. They say these things are cheap, 4 I don't agree with them. Waste can bring a lot of problems. Though China is rich in some resources (资源), we are 5 of others. It is reported that we will have no coal or oil to 6 in 100 years. So if we go on wasting our resources, 7 can we use in the future and where can we move? Think about it. I think we 8 say no to the students who waste things every day. 9 should stop wasting as soon as possible. If we do our best, waste can be stopped 10 and many natural resources can be saved. ( )1. A. people ( )2. A. remember( )3. A. lights ( )4. A. or ( )5. A. tired ( )6. A. use ( )7. A. how ( )8. A. can ( )9. A. Anybody ( )10. A. one day B. students B. have B. machines B. and B. sure B. do B. where B. should B. Nobody B. two days C. farmers C. used C. radio C. but C. full C. make C. what C. shouldn't C. Somebody C. some days D. workers D. forget D. fridge D. so D. short D. choose D. when D. can't D. Everybody D. any day 查看答案
题型:单项选择题 案例分析题 为了解北京市2013年统计从业资格考试情况,北京市统计局从所有参加考试的人员中随机抽取了200人进行调查,这200人的考试成绩统计资料如下,利用以上所给资料,完成下列题目:离散系数的意义是()。A.离散系数越大,均值的代表性越强B.离散系数越大,均值的代表性越弱C.离散系数越大,标准差的代表性越强D.离散系数越大,标准差的代表性越弱 查看答案
题型:翻译题 根据汉语意思补全英文句子,每空一词。1.你爸爸做什么工作?____ ____your father_____?2.他中等身材,短头发.He is of____ ____,and he has____hair.3.你想要哪种面条?What_____ _____noodles would you like?4.你最喜欢什么季节?____is your____season?5.超市在图书馆和银行之间.The supermarket is the library____the bank. 查看答案