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【简答题】
Time spent in a bookshop can be most enjoyable, whether you are a book-lover or merely you are there to buy a book as a present. You may even have entered the shop just to find shelter from a sudden shower. Whatever the reason, you can soon become totally unaware of your surroundings. You soon become engrossed in some book or other, and usually it is only much later that you realise you have spent far too much time there and must dash off to keep some forgotten appointment—without buying a book, of course. This opportunity to escape the realities of everyday life is, I think, the main attraction of a bookshop. There are not many places where it is possible to do this. You can wander round such places to your heart's content. If it is a good shop, no assistant will disturb you with usual greetings, 'Can I help you, sir?' Of course you may want to find out where a particular section is. Then, and only then, are his services necessary. However, when he has led you there, the assistant should retire carefully and look as if he is not interested in selling a single book. You have to be careful not to be attracted by the variety of books in a bookshop. It is very easy to enter the shop looking for a book on ancient coins and to come out carrying a copy of the latest best-selling novel. This sort of thing can be very dangerous. Apart from running up a huge account, you can waste a great deal of time wandering from section to section. 小题1:. . Which may not be included in the writer's experiences while he is in a bookshop? A.Getting relaxed without buying a bo ok. B.Quarrelling with the shop assistant. C.Buying other books instead of those he wanted. D.Forgetting some important appointment. 小题2:. . What does the writer mean by saying 'time spent in a bookshop can be most enjoyable'? A.You may free yourself from the real life. B.Reading is free of charge there. C.There is nobody disturbing you there. D.You can enter without any certain reason. 小题3:. What does the underlined word engrossed most probably mean in the first paragraph? A.Lost. B.Forbidden. C.Puzzled. D.Impressed. 小题4:. . The writer wrote the passage in order to ________. A.suggest a good way of running a bookshop B.encourage people to do some reading in bookshops C.share his experience in bookshops D.give some advice on buying books in a bookshop
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【简答题】According to the writer, what is the correct attitude to treat others?
【单选题】关于生物膜法下列说法不正确的是:()
A.
具有良好的生物脱氮功能
B.
产生的剩余污泥量较多
C.
不会发现污泥膨胀
D.
出水在二沉池中易于固液分离
【单选题】关于膜分离法,下列说法正确的是
A.
利用电渗析法处理工业废水时,可回收水中的有用物质,一般不用考虑电 极反应;
B.
扩散渗析只能顺浓度梯度分离物质,不能够进行浓缩。
C.
超滤法不能分离水中溶解性的物质;
D.
渗析法是溶剂透过膜而溶质不透过而实现分离的过程。
【单选题】关于膜分离法,下列说法正确的是
A.
利用电渗析法处理工业废水时,可回收水中的有用物质,一般不用考虑电 极反应;
B.
扩散渗析只能顺浓度梯度分离物质,不能够进行浓缩。
C.
超滤法不能分离水中溶解性的物质;
D.
膜分离法常在污水的二级处理中使用。
【单选题】在液膜分离技术中,关于膜相载体促进反向迁移,下列说法不正确的是()。
A.
载体常用离子交换剂,如季铵盐、磷酸烃脂等
B.
内相为水,供能离子存在于外相
C.
供能离子与目标产物电性相同
D.
运输单一离子
【单选题】关于磷化膜下列说法不正确的是:
A.
当金属浸入热的稀磷酸溶液中,会生成一层磷酸亚铁(锌、铝)膜。
B.
假转化型磷化的形成过程分为两个阶段:第一阶段,将钢铁件仔细清洗干净浸入酸性磷化液中,金属表面在溶液中发生溶解,发生反应: Fe + 2H3PO4 → Fe(H2PO4)2 +H2 ↑ 第二阶段,金属与溶液界面处 pH 值升高,使得此处可溶性的磷酸(二氢)盐向不溶性的磷酸盐转化,并沉积在金属表面成为磷化膜: Me(H2PO4)2 → MeHPO4  +H3PO4 和 3Me(H2PO4)2  → Me3(PO4)2+4 H3PO4
C.
为了加快磷化速度,提高磷化膜质量,通常采用的方法是:( 1 )加入氧化剂,如 , , 等,它们能除去成膜时产生的 和亚铁离子。( 2 )加入电位比铁高的金属,如 、 、 ,它们通过电化学反应沉积在基材表面上,扩大阴极面积,加速磷化过程。
D.
钢铁在碱金属或铵的磷酸盐及单一磷酸钙盐中形成的磷化膜 是 结晶型 的磷酸铁膜,其它磷化膜是 无定型 的 。
【单选题】在液膜分离技术中,关于膜相载体促进正向迁移,下列说法不正确的是()。
A.
载体常用大环多元醚和叔胺
B.
内相为水,供能离子存在于外相
C.
供能离子与目标产物电性相同
D.
运输中性盐
【单选题】7 关于CO2捕集分离,下列说法正确的是( )?
A.
用氨水捕集 CO2 属物理吸收
B.
利用 CO2与伴生组分物理或化学性质的差异达到捕集分离的目的
C.
低温甲醇吸附 C O2 属化学吸收
D.
膜分离技术目前还不能利用于吸收分离 C O2
【单选题】What is the correct length?
A.
B.
C.
【简答题】_______ different life todayis ________ what it was 30 years ago. A. Howfrom  B. What a from C. Whatfrom  D. How with
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