银行汇票的提示付款期限自出票日起( )。
A.2个月
B.1个月
C.45天
D.15天
参考答案:B
— In order to improve your English, you need to practice more.
— ______. Practice makes perfect.
A.Certainly, go ahead
B.Well, it depends
C.I don’t think so.
D.I couldn’t agree more
爆炸容器的材料和尺寸对爆炸极限有影响,目前一般采用直径为( )mm的爆炸管或球形爆炸容器。
A.50 B.80C.120 D.150