特殊需要的卷筒材料可用()铸钢。
A、HT20—40
B、ZG25Ⅱ、ZG35Ⅱ
C、球墨
D、A、3、16Mn
参考答案:B
—Excuse me. You shouldn't smoke here. Look at the sign "NO SMOKING HERE".
—Sorry, I _______ it just now. [ ]
A. doesn't see
B. haven't seen
C. didn't see
D. hadn't seen
贷记凭证的绝对应记载事项为签发日期、确定金额、()。
A、无条件的支付委托
B、付款人签章
C、用途
D、收款人名称、帐号、开户行
E、付款人名称、帐号、开户行