在气调贮藏中，下列用于脱除乙烯的方法中，不正确的是（）。A、高锰酸钾氧化吸收 B、高温

电磁轭的磁极间距离应控制在（）。

A.50~200mm范围内

B.75~200mm范围内

C.80~200mm范围内

D.A、B和C

患者男性，27岁。背部刀伤，伤口流血2小时，查体，神志尚清楚，主诉口渴，皮肤苍白，皮温稍冷，脉搏112次／分，血压12／9.3kPa（90／70mmHg），脉压小，表浅静脉塌陷，尿少。

关于失血性休克，错误的是（）

A.休克的根本问题是组织细胞缺氧

B.可伴有代谢性酸中毒

C.休克代偿期血压可略高于正常

D.中心静脉压可低于6cmH₂O

E.休克发生时，微循环的变化晚于血压下降

This was one of my experiences (1) . When I was in my 30s, I was working for a large international company which had its head office in London. I was working in the (2) department.
The company had a training centre which was just outside London. Different courses were held there throughout (3) and I (4) go on one training course a year. These usually started (5) a Sunday evening and lasted six days.
Once I was (6) a week’s training course with about forty (7) sales people. I was in the bar on the Friday evening and suddenly a woman who was (8) behind the bar asked mea curious question. "I hope you don’t (9) my asking," she said, "but I’ve been (10) about it all week. Have you got a sister (11) Mary" The woman’s name was June. And she used to do various jobs at the training centre. She worked in the office, she organized all the food and drink for the centre and she worked in the bar at lunchtime and in the evening.
My answer (12) June’s question was "Yes", and June said, "I thought (13) . I met her last September when she was organizing a course here. " At that time, my sister was working for (14) company but in a different part of the country. That was (15) she came to be at the training centre.
(16) surprised me was how June guessed we were brother and sister. Three things made it even more (17) . First, she had met my sister six months before she met me. Second, they have about sixty new people every week at the training centre. So about one thousand five hundred people had (18) the centre in those six months. And (19) , my sister is married, so she doesn’t have the same family name as me.
We’re not (20) , but I guess we must look quite like each other.

A．selling
B．sales
C．sale
D．sold

持票人转让票据权利予他人的行为是（）。

A.背书

B.承兑

C.保证

D.保付

折现现金流量法