罐体及阀门堵漏工具用于()罐体上的安全阀和回转阀的堵漏。
A、氨气
B、液化石油气
C、天然气
D、氯气
参考答案:D
根据汉语提示完成句子。
1. There are some _____(植物) in the room.
2. I _____(需要) some CDs.
3. Do you_____(知道) her name?
4. Can you_____(拿走) this English tape to your brother?
5. Please put these_____(东西) in the case.
6. Is the ball on the_____(地板)?
7. Here is my new_____(房间).
8. His chair is near the _____(书桌).
9. I like English but I don't like _____(数学).
10. Where is her blue _____ (帽子)?
定日付款或者出票后定期付款的汇票,持票人应当在汇票到期日前向付款人提示承兑。见票后定期付款的汇票,持票人应当自出票日起()内向付款人提示承兑。汇票未按照规定期限提示承兑的,持票人丧失对其前手的追索权
A.1个月
B.2个月
C.40天
D.20天