【多选题】
She collected_____________ fishes for the British Museum.
【多选题】
There are many_____________ of noise control.
【单选题】
This will be a good____________ for us to exchange experience.
【单选题】
After Whitneys idea was applied to automobile production, each part____________ had to be made by hand.
【单选题】
Between 1990 and 2000, the population of the United States increased____________ 33 million people.
【单选题】
The power station____________ its supply of electricity day and night.
【单选题】
会计凭证按其填制程序和用途可分为( )。
【单选题】
借贷记帐法下,帐户的借方记增加或贷方记增加是根据( )。