某放热反应正反应的活化能是30kJ/mol，则其逆反应的活化能（）。A．等于-30k 发布时间：2017-12-22 08:29 │ 来源：www.tikuol.com 题型：单项选择题 问题： 某放热反应正反应的活化能是30kJ/mol，则其逆反应的活化能（）。A．等于-30kJ/molB．大于30kJ/molC．小于30kJ/molD．无法判断
题型：单项选择题 完形填空。 Life is not easy, so I'd like to say "When anything happens, believe in yourself." WhenI was a young boy, I was 1 shy to talk to anyone. My classmates often 2 me. I wassad but could do nothing. Later, 3 happened, and it changed my life. It was an English speech contest. My mother asked me to 4 it. What a terrible idea! It meant I had to speak before all the teachers and students of my school. "Come on, boy. Believe in yourself. You are sure to 5 the contest." Then mother andI talked about many different topics. At last I chose the topic "Believe in yourself." I tried my best to remember all the speech and practiced it over 100 6 . With my mother's great love, I did 7 in the contest. I could hardly believe my ears when the news came that I had won the first place, I heard the cheers 8 the teachers and the students. Those classmates 9 once looked down on (看不起) me, now all said "Congratulations!" to me. My mother hugged me and cried excitedly. Since then, everything has changed for me. When I do anything, I try to tell 10 to be sure and I will find myself. This is not only for a person but also for a country. ( )1. A.too ( )2. A.made faces at( )3. A.nothing ( )4. A.take part in ( )5. A.lose ( )6. A.words ( )7. A.well ( )8. A.for ( )9. A.when ( )10. A.someone B.so B.looked afterB.something B.join B.win B.topics B.good B.at B.what B.me C.quite C.caught up with C.everything C.get C.pass C.times C.bad C.from C.which C.everything D.very D.laughed at D.anything D.make D.beat D.sentences D.interested D.to D.who D.myself 查看答案
题型：单项选择题 解除劳动合同应符合法律规定，下列各项中符合规定的是( )。A．小张患职业病并被确认丧失部分劳动能力B．小王不能胜任目前工作，经培训后仍不能胜任工作，并且不服从安排C．小玲生育后，一直在家哺乳孩子D．小沈感冒引发肺炎，连续一周没上班，但在医疗期内 查看答案
题型：单项选择题 为了进行集中监控，使PRS700的模块告警信号输入到DF告警板，则告警信号线应接到PRS700告警模块接口板TB2的（）两个告警接口。A、3、4B、9、10C、7、8D、17、18 查看答案