第七章I/0接口电路 7-1单片机并行接口PI 7-2定时/计数器电路CTC 7-3可编程并行接口芯片 7-5串行I/0接口SI0

7—1、根据图 7-1-7 画出 i1、i2、i3分别达到最大值时刻的旋转磁场。 提示：根据图 7-1-7 画出。7—2、有一台四极三相异步电动机，电源频率为 50Hz，带负载运行时的转差率为 0.03,求同步转速和实际转速

According to the Questionna ire the following relevant questions were to be addressed I. Concepts and definitions I. Constitutional and legal status of Head of State, Head of Govemment and ministers in relation to national and international crim inal law Ill. Responsibility of Head of State, Head of Government and Minister(s) for criminal acts or om issions committed by their subord ina tes, i. e civil servants IV. Distinctions between governmental (official)and personal crim inal

语言仅仅是一种编码的想法似乎很容易被人们接受，很多人在学生时代至少学过一种外语， 因此，我们知道在英语中“c a t”（猫）也可以被叫作g a t o、c h a t、K a t z e、K O I I I K或k a p a。 然而，数字不那么容易随文化的不同而改变。不论那种语言，也不管怎样读那些数字， 地球上我们能够遇到的几乎所有的人都用同样的方式来写数字：

统计量都是随机变量，统计量的分布称为抽样分布。 定理 5.7 设随机变量 X1 , X 2 ,\, X n 相互独立，且 ~ ( , ) 2 Xi N µ i σ i (i = 1,2,\n)

1、（1）double（2）f1（3）f2 2、（1）struct student（2）n-1（3）a[i].name,a[j].name 3、（1）0（2）x[i]/N（3）j++ 4、（1）k（2）N（3）a[k][i]

Ⅱ. Listening skills Listening for People' s Food Preferences 1. M: Jenny, the main courses here are steak, chicken or fish. Each comes with rice. So, what looks good to you? W: Gee, I had chicken last night, and I often eat fish for dinner. Maybe I'll have steak

1. I see． 我明白了。 2. I quit! 我不干了! 3. Let's go! 放手! 4. Me too． 我也是。 5. My god! 天哪! 6. No way! 不行! 7. Come on． 来吧(赶快) 8. Hold on． 等一等。 9. I agree。 我同意。 10. Not bad． 还不错。 11. Not yet． 还没。 12. See you． 再见。 13. Shut up! 闭嘴! 14. So long． 再见。 15. Why not? 好呀! (为什么不呢?) 16. Allow me． 让我来。 17. Be quiet!

由前一节的讨论,已经得到下面的两点性质: 1.辛空间(V,f)中一定能找到一组基E,E2,n-2n满足 f(n)=1,1≤i≤n, f()=0,-n≤i,jn,i+j≠0

Uinta I. Basic listening practice 1. Script M: Do you see yourself as a leader or more of a team player? W: Well, it depends on the circumstances. I usually enjoy working as part of a team and helping everyone work together. But if the leadership is weak, I'm not afraid to take over in order to achieve the goal at hand Q: What does the woman want to be?