与股票投资相比，债券投资的主要缺点有（）。A、投资风险大 B、投资安全性差 C、没有

根据《建筑设计防火规范》的规定，高层厂房应设置独立的消防给水系统。其室内消防竖管（）。

A.应连成环状

B.当其室内消火栓数量不超过10个且室外消防用水量不大于15L/s时，可不连成环状

C.直径应为DN100

D.每根竖管最小流量不应小于5L/s

1.某项目建设期为2年，生产期为8年。项目建设投资（含工程费、其他费用、预备费用）3100万元，预计全部形成固定资产。固定资产折旧年限为8年，按平均年限法计算折旧，残值率为5%。在生产期末回收固定资产残值。2.建设期第1年投入建设资金的60%，第2年投入40%，其中每年投资的50%为自有资金，50%由银行贷款，贷款年利率为7%，建设期只计息不还款。生产期第1年投入流动资金300万元，全部为自有资金。流动资金在计算期末全部回收。3.建设单位与银行约定：从生产期开始的6年间，按照每年等额本金偿还法进行偿还，同时偿还当年发生的利息。4.预计生产期各年的经营成本均为2600万元，营业收入在计算期第3年为3800万元，第4年为4320万元，第5～10年均为5400万元。假定营业税金及附加的税率为6%，所得税率为33%，行业基准静态投资回收期（P_c）为8年，行业基准收益率为i_c=10%。

列式计算固定资产残值及各年固定资产折旧额。

患者男，29岁。咳嗽、咳痰、消瘦、全身乏力一个月，畏寒、发热20多天，曾在当地卫生院治疗未见好转，近20多天来高热、畏寒、咳嗽、咳痰加重入院，体检：T39℃，P98次/分，R26次/分，BP135/68mmHg。神清，巩膜无黄染。心律齐，各瓣膜区未闻杂音，双肺呼吸音增粗，未闻干湿性啰音。腹部平坦，肝脾未触及，全腹无压痛。全身表浅淋巴结未触及，未见皮疹及出血点。双下肢未见凹陷性水肿，未引出病理性神经反射。

哪些抗结核药物对结核菌是全杀菌药（）

A.EMB

B.PZA

C.SM

D.PAS

E.RFP

F.INH

—Would you like to have dinner with us?  

—______ . [ ]

A. You are welcome      

B. I like chicken very much

C. I’d love to. Thanks.    

D. The restaurant is very far from my house

Life is difficult.

It is a great truth because once we truly understand and accept it, then life is no longer difficult.

Most do not fully see this truth. Instead they complain about their problems and difficulties as if life should be easy. It seems to them that difficulties represent(代表) a special kind of suffering especially forced upon them or else upon their families, their class, or even their nation.

What makes life difficult is that the process of facing and solving problems is a painful one. Problems, depending on their nature, cause in us sadness or loneliness or regret or anger or fear. These are uncomfortable feelings, often as painful as any kind of physical pain. And since life causes an endless series of problems, life is always difficult and is full of pain as well as joy.

Yet, it is in this whole process of solving problems that life has its meaning.

Problems are the serious test that tells us success from failure. When we desire to encourage the growth of the human spirit, we encourage the human ability(能力) to solve problems, just as in school we set problems for our children to solve. It is through the pain of meeting and working out problems that we learn. As Benjamin Franklin said, “Those things that hurt, instruct.” It is for this reason that wise people learn not to fear but to welcome the pain of problems.

56. From the passage, it can be inferred that ______.

A. everybody has problems          

B. we become stronger by facing and solving the problems of life

C. life is difficult because our problems bring us pain

D. people like to complain about their problems

57.The writer probably used just one short sentence in the first paragraph to ______.

A. save space                B. persuade readers 

C. make readers laugh         D. get reader's attention

58. The main idea of paragraph 3 is that ______.

A. most people feel life is easy     

B. the writer feels life is easy

C. the writer likes to complain about his problems

D. most people complain about how hard their lives are

59. According to the passage, we give school children difficult problems to solve in order to ______.

A. encourage them to learn  

B. teach them to fear the pain of solving problems

C. help them learn to deal with pain

D. teach them how to respect for problems