对产品产量不同、产品价格又难以确定的比选方案,当其产品为单一产品或能折合为单一产品时

题型:单项选择题

问题:

对产品产量不同、产品价格又难以确定的比选方案,当其产品为单一产品或能折合为单一产品时,可采用()。

A.费用现值比较法

B.等额年费用比较法

C.最低价格比较法

D.最高价格比较法

考点:投资建设项目管理师投资建设项目决策投资建设项目决策
题型:单项选择题

一锤定音。(在加粗字的正确读音上打“√”)

(sì shì)    许(yǔn rǔn)   鸟(bǔ pǔ)

瓜(zhāi zāi)   桌(chān cān)   咳(sòu sou)

题型:单项选择题

下列字母中,都是两笔完成的是____.

A.r , t

B.p , q

C.d , k

D.f , j

题型:单项选择题

Even a child knows that nodding(点头) the head means “Yes”. But some people will probably be puzzled when they first come to India. When they talk to an Indian, he often shakes his head. They might think that the Indian does not like what he said, but on the contrary he is expressing agreement.

The Indians have a habit of shaking their heads slightly when they talk to somebody. It doesn’t mean “No”, but “Yes”.If a person doesn’t know this, it might cause misunderstanding.

At one time a foreigner in India told his driver who was an Indian to take him to his office. The driver shook his head. The foreigner repeated his request and the driver shook his head again. At last, the foreigner shouted angrily, “Drive me to my office at once!” The driver said in a low voice, “Yes, sir,” smiling and shaking his head again at the same time.

68. Generally speaking, nodding the head means _______, and shaking the head means _______.

A. Yes, No                  B. No, Yes                  C. Yes, Yes                 D. No, No

69. According to the habit of India, if someone agrees with you, he will _______.

A. nod his head

B. shake his head

C. neither nods his head nor shakes his head

D. either nod his head or shake his head

70. Why did the Indian driver shake his head when the foreigner asked him to drive him to his office? Because _______.

A. the Indian driver has something important to do

B. the foreigner promised to give him only a little money

C. The driver felt uncomfortable at that time

D. In India shaking the head means agreement

71. Why did the foreigner become angry? Because _______.

A. the Indian driver didn’t want to send him to his office

B. the Indian driver asked him for a lot of money

C. He misunderstood the meaning of shaking the head in India

D. he asked the driver to send him to his office, but the driver didn’t say any words

题型:单项选择题

设α1,α2,α3,α4,β为四维非零列向量,A=(α1,α2,α3,α4),已知方程组AX=β的通解是(-1,1,0,2)T+k(1,-1,2,0)T,其中k为任意实数.
(Ⅰ) 问β能否由α1,α2,α3线性表示
(Ⅱ) 求向量组α1,α2,α3,α4,β的一个极大无关组.

题型:单项选择题

某地拟新建污水处理厂及配套管网工程,总投资2.5亿元。设计规模为日处理污水15万吨,配套管网总长50km。污水处理工艺采用A/O法,厂内各单元构筑物均按工艺及规模要求建设,同时厂内建有综合办公楼及锅炉房等设施。该项目项目南侧为农田,东侧为公路。北侧2km处为一条中河,水体功能为Ⅳ类,项目处理后的尾水即排入该河。该项目需对一村庄进行拆迁,共设计村民86户、343人。

试述项目营运期大气污染影响。

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