n位寄存器组成的环形移位寄存器可以构成下列哪种计数器
A.n
B.2n
C.4n
D.无法确定
参考答案:A
句型转换。
1. What else did you do? (改为同义句)
_____ _____ _____ did you do?
2. What do you think of the book? (改为同义句)
_____ do you_____ - the book?
3.Must I practice reading English every day?(作肯定回答和否定回答)
Yes, _____ _____ ,/No,_____ _____.
4. My mother is sick. (改为同义句)
My mother is _____
5. Don't worry about her. (改为同义句)
Don't _____ _____ about her.
6. Thank you very much.(改为同义句)
Thank you_____ _____.
“一国两制”构想是实现祖国完全统一的最佳方案。