汇票的收款人有三种填写方式,根据我国《票据法》的规定,其中凡签发( )的汇票无效。
A.限制性抬头
B.指示性抬头
C.持票人或来人抬头
D.记名抬头
参考答案:C
—Jason wants to know if ______a school sports meeting tomorrow?
—Yes, we will. But if it______, we'll have classes instead.[ ]
A. will you have:rains
B. you will have: will rain
C. you will have:rains
D. will you have: will rain
电子束焊常用的加速电压为( ) kV。
A.10~30
B.30~150
C.150~230
D.230~290