DKJ－2000调车监控记录系统可以通过对调车机车位置的实时跟踪和调车作业通知单钩作

下列应用不涉及氧化还原反应的是

A．工业上利用N₂和H₂合成氨，实现人工固氮

B．实验室用NH₄Cl和Ca(OH)₂制备NH₃

C．用FeCl₃溶液作为“腐蚀液”刻蚀电路铜板

D．用Na₂O₂作潜水艇的供氧剂

【真题试题】 （2009年单项选择第36题）根据《反不正当竞争法》和相关法律的规定，下列关于诋毁商誉行为的表述正确的是（ 　）。

A．经营者捏造虚假事实贬低竞争对手的商业道德不构成诋毁商誉行为

B．经营者通过新闻发布会形式发布影响其他同业经营者商誉的信息，只要该信息是真实的，不构成诋毁行为

C．诋毁行为只能是针对市场上某一特定竞争对手实施的

D．经营者对其他竞争者进行诋毁，其主观心态既可以是故意，也可以是过失

Well, Mrs Evans, I’ve done my best to look after David. I’ve tidied his room up every day, got him a meal together whenever he needed one and made sure he’s always had a clean shirt to put on. It’s not been easy, with two of my own to worry about, as well. David had the best of attention, I must say. But now because I asked him to give up bringing that American friend to his home he has got quite and unfriendly. He comes in at all hours and his behaviour—well, it’s quite hard to put up with—and it’s all because of this friend. I’m sure he’s a bad influence. You see, David is a visitor and doesn’t fully understand our ways.

He used to study most evenings. He’s got through quite a bit of work. He did up his room quite nicely, with bookshelves and large posters. He’d ask Mr Smith and me up for a drink and cheer us up with songs from his country. He’s very good at the guitar, you know.

I don’t want to appear as if I’m running after him, but it’s about time we made it up. I’m sure he’s upset because I blame him for that. It might be a good idea to take him out for a meal, perhaps even with his friend. I don’t know whether it will do any good but we can try. I’m glad I’ve had this little chat with you, Mrs Evans, and I’ll let you know how I get on.

小题1:David is          .

A．Mrs Smith’s pet

B．Mrs Smith’s son

C．a visiting student

D．a singer小题2:Mrs. Smith wants to make up(化解) the quarrel by _______.

A．cooking a meal

B．inviting David and his friend out

C．running after David

D．giving them drinks小题3:David’s present attitude to Mrs Smith is     .

A．very attentive

B．unfriendly

C．cheerful

D．excited

纳税人用于公益、救济性的捐赠，在年度应纳税所得额( )以内的部分，准予扣除。

A．1.5%

B．2%

C．3%

D．14%

脉搏减慢可见于( )。

A．动脉粥样硬化
B．心功能不全
C．失血性休克
D．颅内压增高
E．交替脉