仿真中，TMB与天线间的馈线损耗一般设置为（）dB。A.0.5 B.1 C.2 D. 发布时间：2019-07-24 21:04 │ 来源：www.tikuol.com 题型：单项选择题 问题： 仿真中，TMB与天线间的馈线损耗一般设置为（）dB。A.0.5B.1C.2D.3
题型：单项选择题 完形填空。 "I don't like my parents. They always tell me I should 1 this, and shouldn't do that. It often makes me unhappy,"said Zhang Li, a middle school student. Do you have the same problem 2 ZhangLi? Why aren't some parents so 3 ? On one hand, parents do a lot for you. They worry about your choice of friends, the food you eat and your study at school. 4 these things are part of your life. Don't blame(责备) them. They want you to 5 up healthily and happily. On the other hand, you 6 introduce your friends to your parents. Let them 7 you are making good friends. 8 them If you stay outside 9 than usual. Don't always argue 10 them. Talk about your ideas with them. You'll understand them when you become a parent in the future.( )1. A. study ( )2. A. about ( )3. A. friendly ( )4. A. Both ( )5. A. stay ( )6. A. shouldn't( )7. A. know ( )8. A. Surprise ( )9. A. early ( )10. A. with B. make B. as B. unpleasantB. Whole B. wake B. should B. look B. Remember B. late B. for C. do C. like C. scared C. All C. keep C. must C. think C. Call C. earlier C. in D. learn D. to D. busy D. Every D. grow D. needn't D. think D. Talk D. later D. on 查看答案
题型：单项选择题 1 mol过氧化钠与2 mol碳酸氢钠固体混合后，在密闭容器中加热充分反应，排出气体物质后冷却，残留的固体物质是[ ]A.Na2CO3 B.Na2O2 Na2CO3 C.NaOH Na2CO3 D.Na2O2 NaOH Na2CO3 查看答案