砂轮机是机械工厂最常用的机械设备之一,其主要特点是易碎、转速高、使用频繁和易伤人。砂

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问题:

砂轮机是机械工厂最常用的机械设备之一,其主要特点是易碎、转速高、使用频繁和易伤人。砂轮在使用时有严格的操作程序和规定,违反操作规程将给操作人员造成伤害。下列关于砂轮机操作要求的说法中,正确的有()。

A.不许站在砂轮正面操作

B.允许在砂轮侧前方操作

C.不允许多人共同操作

D.禁止侧面磨削

E.允许砂轮正反车

考点:安全工程师安全生产技术2015年安全生产技术真题
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—Would you like to go with me next Sunday?

—Sorry, ________.[ ]

A. I am not sure    

B. I am not certain    

C. certainly    

D. sure

题型:多项选择题

物理学家欧姆在探究通过导体的电流和电压、电阻关系时,因无电源和电流表,利用金属在冷水和热水中产生电动势代替电源,用小磁针的偏转检测电流,具体的做法是:在地磁场作用下处于水平静止的小磁针上方,平行于小磁针水平放置一直导线,当该导线中通有电流时,小磁针会发生偏转。某兴趣研究小组在得知直线电流在某点产生的磁场与通过直导线的电流成正比的正确结论后重现了该实验,他们发现:当通过导线电流为时,小磁针偏转了;当通过导线电流为时,小磁针偏转了,则下列说法中正确的是[ ]

A.

B.

C.

D.无法确定

题型:多项选择题

有关蔓状血管瘤,以下哪项是不正确的()

A.有较粗的迂回血管构成,大多为动脉

B.可听到持续性吹风样杂音

C.好发于头皮,可破损颅骨而侵入板障静脉,并与颅内静脉窦相连接

D.治疗应争取手术切除

E.选择性动脉造影是目前蔓状血管瘤诊断和治疗前是常用的辅助检查

题型:多项选择题

刘女士,27周岁,成都某公司职员,公司以3500元为基数为其连续缴纳生育保险费用1年多了。现刘女士已经怀孕8个月,属于第一胎,打算休产假。不知道刘女士这种情形可以休多少天产假?可以领取多少生育津贴?

题型:多项选择题

Personality is to a large extent inherent. A-type parents usually (1) A-type offspring. But the environment must also have a profound effect (2) if competition is important to the parents, it is (3) to become a major factor in the lives of their children.

One place where children (4) A characteristics is school, which is, (5) its very nature, a highly competitive institution. Too many schools (6) the "win at all costs" moral standard and measure their success by sporting achievements. The current (7) for making children compete against their classmates or against the (8) produces a two-layer system, in which competitive A types seem in some way better than their B type fellows. Being too (9) to win can have dangerous consequences: remember that Pheidippides, the first marathon runner, (10) dead seconds after saying. "Rejoice, we conquer!"

(11) the worst form of competition in schools is the disproportionate emphasis on examinations. There is, for example, a (12) school that allows pupils to concentrate on those things they do well. The (13) of competition by examination are somewhat questionable, but competition in the certain (14) of failure is positively harmful.

(15) , it is neither practical nor desirable that all A youngsters change into B’s. The world needs types, and schools have an important duty to try to (16) a child’s personality to his possible future employment. It is top management.

If the preoccupation of schools with academic work was (17) , more time might be spent teaching children surer values. Perhaps selection (18) the caring professions, especially medicine, could be made less by good grades in chemistry and more by such (19) as sensitivity and sympathy. It is surely a mistake to choose our doctors exclusively from A type stock. B’s are important and should be (20) .

8()

A.authority

B.world

C.nature

D.clock

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