天文经度

不依比例尺符号

用括号内所给动词的适当形式填空。

1. Look! The bus ______ (come).

2. He ______ (not go) home yesterday afternoon.

3. ______ you ______ (find) work in Hefei last year?

4. Tom usually ______ (walk) to school.

5. The moon ______ (move) round the earth.

6. The children ______ (watch) TV at home every evening.

7. —What ______ you ______ (do) tomorrow?

    —Nothing much.

8. —Where is Jim?

    —He ______ (mend) his bike in the garden.

9. Alice ______ (write) two letters to her parents last week.

10. We ______ (visit) you next Sunday.

医德修养的根本途径

A．坚持在医疗卫生保健实践中修养

B．创造一个良好的医德修养氛围

C．不断学习医德知识

D．向医德高尚的医生学习

E．坚持用各种方法进行医德修养

It's best ______ English like this.

A. learning



B. to learn
C. learns



D. learned

速率为10Gbit/s的Ethernet发送1bit数据需要的时间是______。

A．1×10^-6s

B．1×10^-9s

C．1×10^-10s

D．1×10^-12s