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问题 多项选择题

商业资本的独立存在有如下作用（）

A、有利于产业资本家集中精力从事生产，增加利润总量

B、有利于节省社会总资本中用于流通领域的资本

C、有利于增加剩余价值的生产，提高利润率

D、有利于产业资本周转的加快

答案

参考答案：A, B, C, D

填空题

(4分)已知HCO3—比HBrO更难电离，但HBrO的酸性比H2CO3弱，写出以下反应的离子方程式：

（1）向NaHCO3溶液中滴加少量溴水：                                       

（2）向Na2CO3溶液中滴加少量溴水：                                        
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单项选择题

Most people have no idea of the hard work. One of the questions that is always asked of me is (1) I became an animal collector in the first (2) .The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any (3) was not the conventional "mamma" or "daddy", (4) the word "zoo", which I would (5) over and over again with a shrill (6) until someone, in order to (7) me up, would take me to the zoo. When I (8) a little older, we lived in Greece and I had a great (9) of pets, ranging from owls to seahorses, and I spent all my spare time (10) the countryside in search of fresh specimens to (11) to my collection of pets.(12) on I went for a year to the City Zoo, as a student (13) , to get experience of the large animals, such as lions, bears, bison and ostriches, (14) were not easy to keep at home. When I left, I (15) had enough money of my own to be able to (16) my first trip and I have been going (17) ever since then. Though a collector’s job is not an easy one and is full of (18) , it is certainly a job which will appeal (19) all those who love animals and(20) .

第（20）空应选择（）

A．excursion

B．travel

C．journey

D．trip
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