球磨机给矿器有三种型式,鼓式给矿器适用于给入湿物料,螺旋式给矿器适用于给入干物料,联

题型:判断题

问题:

球磨机给矿器有三种型式,鼓式给矿器适用于给入湿物料,螺旋式给矿器适用于给入干物料,联合给矿器适用于给入干和湿物料。

考点:磨浮工磨浮工(高级)磨浮工(高级)题库
题型:判断题

汽车在雨天行驶速度应慢一些,这是由于(  )

A.雨天汽车的惯性大

B.速度越小汽车惯性越小

C.雨天汽车的摩擦力小,速度越大越不易停下

D.以上说法都错

题型:判断题

阅读下列材料:

材料一:斯大林在论述苏联工业化时说:“在资本主义国家,工业化通常是从轻工业开始。由于轻工业与重工业比较起来,需要的投资少,资本周转快,获得利润也更容易,所以在那里,轻工业成为工业化的头一个现象。只有经过一个长时期,轻工业积累了利润并把这些利润集中于银行,这才轮到重工业,积累才开始逐渐转到重工业中去,造成重工业发展的条件。但这是一个需要数十年之久的长期过程……, * * 党当然不能走这条道路。党知道战争日益逼近,没有重工业就无法保卫国家,所以必须赶快发展重工业,如果这事做迟了,那就要失败。”

———摘自《斯大林选集》下卷

材料二:30 年代苏联的经济体制“实行工商企业的国有化和集体农庄的准国有化,把其他一切不受国家直接控制的经济成分统统消灭掉。它限制商品货币关系,否定价值规律和市场机制的作用,用行政命令甚至暴力手段管理经济,把一切经济活动置于指令性计划之下。”

———摘自吴于廑、齐世荣主编《世界史·现代史编》

请回答:

(1)根据材料一,概括指出通常工业化应按什么途径进行?为什么要按这种途径进行?

(2)苏联的工业化又是按什么途径进行的?说明采取这种途径的必要性?

(3)根据材料二概括指出当时苏联所建立的经济体制的模式。

(4)苏联的经济建设为我们的社会主义现代化建设提供了什么经验教训?

题型:判断题

阅读理解。

     The speaker, a teacher from a community college, addressed a sympathetic (赞同的) audience.

Heads nodded in agreement when he said, "High school English teachers are not doing their jobs." He

described the inadequacies of his students, all high school graduates who can use language only at a

grade 9 level.I was unable to determine from his answers to my questions how this grade 9 level had

been established.

     My topic is not standards nor its decline. What the speaker was really saying is that he is no longer

young; he has been teaching for sixteen years, and is able to think and speak like a mature adult.

     My point is that the frequent complaint of one generation about the one immediately following it is

inevitable. It is also human nature to look for the reasons for our dissatisfaction. Before English became

a school subject in the late nineteenth century, it was difficult to find the target of the blame for language

deficiencies (缺陷).But since then, English teachers have been under constant attack.

     The complainers think they have hit upon an original idea. As their own command of the language

improves, they notice that young people do not have this same ability. Unaware that their own ability

has developed through the years, they assume the new generation of young people must be hopeless

in this respect. To the eyes and ears of sensitive adults, the language of the young always seems

inadequate.

     Since this concern about the decline and fall of the English language is not perceived (察觉) as a

generational phenomenon but rather as something new and peculiar (特有的) to today's young people,

it naturally follows that today's English teachers cannot be doing their jobs. Otherwise, young people

would not commit offenses against the language.

1. The speaker the author mentioned in the passage believed that ________.

A. the language of the younger generation is usually inferior (差的) to that of the older generation

B. the students had a poor command of English because they didn't work hard enough

C. English teachers should be held responsible for the students' poor command of English

D. he was an excellent language teacher because he had been teaching English for sixteen years

2. In the author's opinion, the speaker _______.

A. had exaggerated (夸大) the language problems of the students

B. gave a correct judgment of the English level of the students

C. was right in saying that English teachers were not doing their jobs

D. could think and speak intelligently

3. The author's attitude towards the speaker's remarks is _______.

A. neutral

B. positive

C. compromising

D. critical

4. It can be concluded from the passage that ________.

A. it is justifiable (有理由的) to include English as a school subject

B. the author disagrees with the speaker over the standard of English at Grade 9 level

C. language improvement needs time and effort

D. language teaching is by no means an easy job

5. In the passage the author argues that _______.

A. young people would not commit offences against the language if the teachers did their jobs properly

B. it is unfair to blame the English teachers for the language deficiencies of the students

C. to eliminate (消除) language deficiencies one must have sensitive eyes and ears

D. to improve the standard of English requires the effort of several generations

题型:判断题

二进制数1000110对应的十进制数是

A) 56
B) 89
C) 34
D) 70

题型:判断题

当电梯厅、轿门未关闭,而仍能发起工作时,应()。

A、当即间断运用

B、驶回首站

C、打至修补工作

D、直驶工作

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