【简答题】调速阀可使速度稳定,是因为其节流阀的前后压力差为 。
【多选题】An applicant is the party which applies to the bank for opening a letter of credit. It is usually the( )in the sales contract.
【简答题】调速阀可使速度稳定,是因为其节流阀的前后压力差为() 。A. 定值
【单选题】What will the buyer do if his bank buys the draft for him?
A.
He will open a letter of credit.
B.
He will repay the bank a short-term loan.
C.
He will buy back the draft.
D.
He will return the money to the seller.
【简答题】调速阀可使速度稳定,是因为其节流阀前后的压力差 。
【简答题】调速阀可使速度稳定,是因为其节流阀的前后压力差为()。
【判断题】调速阀可使速度稳定,是因为其节流阀前后的压力差基本不变。