直流系统发生()故障时,故障报警装置应可靠动作,发出报警信号。
A、交流电源失压(包括断相)
B、充电浮充电装置故障
C、蓄电池组熔断器熔断
D、蓄电池组漏液
参考答案:A, B, C
甲工业企业是增值税小规模纳税人,该企业对原材料的核算方法采用计划成本法,本期购入100吨生产用原材料,增值税专用发票上注明的价款总额办100万元,增值税额为17万元,该企业对此材料的计划成本为11 000元/吨,另外支付5 000元保险费。材料已经运抵甲企业,但是验收入库时发现短缺2吨,经查明是运输途中的合理损耗,则该原材料应计入“材料成本差异”科目的金额为( )万元。
A.借方9.7
B.贷方9.7
C.借方7.3
D.贷方7.3
Of all the areas of learning the most important is the development of attitudes. Emotional reactions as well as logical thought processes affect the behavior of most people."The burnt child fears the fire" is one instance; another is the rise of despots like Hitler. Both examples also point up the fact that attitudes stem from experience. In one case the experience was direct and impressive; in the other it was indirect and cumulative. The Nazis were indoctrinated largely by the speeches they heard and the books they read.The classroom teacher in the elementary school is in a strategic position to influence attitudes. This is true partly because children acquire attitudes from those adults whose word they respect.Another reason it is true is that pupils often delve somewhat deeply into a subject in school that has only been touched upon at home or has possibly never occurred to them before. To a child who had previously acquired little knowledge of Mexico, his teacher’s method of handling such a unit would greatly affect his attitude toward Mexicans.The media through which the teacher can develop wholesome attitudes are innumerable. Social studies (with special reference to races, creeds and nationalities), science matters of health and safety, the very atmosphere of the classroom... these are a few of the fertile fields for the inculcation of proper emotional reactions.However, when children come to school with undesirable attitudes, it is unwise for the teacher to attempt to change their feelings by cajoling or scolding them. She can achieve the proper effect by helping them obtain constructive experiences.To illustrate, first grade pupils afraid of policemen will probably alter their attitudes after a classroom chat with the neighborhood officer in which he explains how he protects them. In the same way, a class of older children can develop attitudes through discussion, research, outside reading and all-day trips.Finally, a teacher must constantly evaluate her own attitudes, because her influence can be deleterious if she has personal prejudices. This is especially true in respect to controversial issues and questions on which children should be encouraged to reach their own decisions as a result of objective analysis of all the facts.
The word "despot" underlined in Paragraph 2 means a person ______.
A.who enjoys a high reputation
B.who is very successful in politics
C.with unlimited powers
D.who deposits a large sum of money in a bank