氧化-比色法测定天然气含硫量时,天然气和净化空气应以大约()的比例混合,进公石英管中燃烧。
A.1:5
B.1:10
C.1:15
D.1:20
参考答案:C
对话填空。
W: Oh,so many people! (1) E______ me, could you please help me with this bag?
M: (2) C__________. You look a bit tired. Here, please take my (3) s_______.
W: That's very kind of you. I'm not (4) f_______ well now. I think I have a bit of cold. Could you please tell me
when we (5) r______ Long Street? I'm (6) a______ I can't see where we are because the bus is (7) f_____
of people.
M: Sure. I'll let you (8) k_____ when we get there.
W: Thank you. ( Now the bus comes to Long Street.)
M: Here is Long Street. (9) S_____ I help you with the bag?
W: No, thanks. I can do it (10) m______. You are really kind to help me all the way. Thanks a lot.
M: Not at all.
张某于2009年2月份将其自有的房屋出租给王先生居住,租期2年,年租金18000元。 2月份张某囚房屋陈旧而进行了简单维修,发生维修费用1200元(取得合法有效凭证)。除个人所得税外,暂不考虑其他税费。则张某2009年3月份应缴纳个人所得税额 ( )元。
A.25.50B.30C.51D.55.5