n边形的每个外角都等于30°,则n=______,它的内角和是______.
边数n=36030=12;
内角和是:(12-2)•180=1800°.
在了解甲公司内部控制时,A注册会计师最应当关注的是()
A.内部控制是否按照管理层的意图,实现了经营效率
B.内部控制是否能够防止或发现并纠正错误或舞弊
C.内部控制是否明确区分控制要素
D.内部控制是否没有因串通而失效
用used to或一般现在时完成句子.
1. I play tennis. I stopped playing a few years ago.
2. Do you do any sport? Yes, I .
3. "Have you got a car?" "No, I __________ one but I sold it."
4. George __________ a waiter. Now he's the manager of a hotel.
5. "Do you go to work by car?" "Sometimes but most days I __________ by train."
6. When I was a child, I never __________ meat, but I eat it now.
7. Mary loves watching TV. She __________ TV every evening.
8. We __________ near the airport but we moved to the city centre a few years ago.
9. Normally I start work at 7 o'clock, so I __________ up very early.
10. What games __________ you __________ when you were a child?