异步电动机在启动瞬间，转子绕组中感应的电流很大，使定子流过的启动电流也很大，约为额定电流的（）倍。
A、4-7
B、2
C、9-10
参考答案：A
读句子，选出恰当的单词填空。
1. A: Who's this (man / woman)?
B: He's my uncle.
2. A: How many people are there in (you / your) family?
B: Six.
3. What would you like (to / for) dinner?
4. I'd like (two / too) hamburgers for dinner.
5. What can you see (on / in) my kitchen?
根据《债券登记、托管与结算业务实施细则》规定，中国结算公司按证券账户核算标准券。（ ）
