Children loam almost nothing from
television, and the more they watch, the less they remember. They regard
television purely (71) entertainment, resent programs that
put (72) on them and are surprised that anybody should
(73) the medium seriously. Far from being over-excited by
programs, they are mildly (74) with the whole thing. These
are the main conclusions from a new study of children and television. The
author, Cardiac Cullingford, (75) that the modem child is
a (76) viewer. The study suggests that there is little
(77) in the later hours. All 11-year-olds have watched programs
after midnight. Apart from the obvious waste of time (78) , it seems that all this viewing has little effect. Cullingford says that children can recall few details. They can remember exactly which programs the A. clear about B. clear of C. clear away D. clear up [单项选择]
新修订、被誉为“史上最严”的环保法已于今年1月1日起正式实施,环保领域人士欢呼雀跃,似乎中国环保的春天就要到来。事实真的如此吗?昨日,环保部通报两起环境执法人员受到暴力抗法事件的处理情况:多名环保执法人员遭到工厂保安,甚至城管局工作人员的威胁及殴打法治是民生福祉。面对企业暴力抗法,法治必须补强,涤除社会公害。 A. 环保春天需要法治补强 B. 新的环保法并没有起到什么实质性作用 C. 新的环保法引起了众多人的不满 D. 中国环境保护的明天会更好 [单选题]新参加电气工作的人员、实习人员和临时参加劳动的人员(管理人员、非全日制用工等),必须参加( )教育,并经考试合格后,方可下现场参加指定的工作,并且不得单独工作。
A.业务知识 B.业务技能 C.紧急救护 D.安全生产知识 [填空题]双线区段接到来车通知后,严格执行本线来车、( )、邻线过车、停止作业的规定。
[单项选择]梗阻性休克的基本机制是血流的主要通道受阻。根据梗阻部位不同可以将其分为心内梗阻性休克和心外梗阻性休克。不是梗阻性休克病因的是()。
A. 主动脉夹层动脉瘤 B. 心包缩窄或填塞 C. 心瓣膜狭窄 D. 心肌梗死 E. 肺栓塞 [单选题]单选题
A.不使用 B.应使用 [多选题]保安负荷是指用于保障用电场所人身与财产安全所需的电力负荷。断电后会造成下列后果之一的,为保安负荷。
A.直接引发人身伤亡的; B.使有毒、有害物溢出,造成环境大面积污染的; C.将引起爆炸或火灾的;或将引起重大生产设备损坏的; D.将引起较大范围社会秩序混乱或在政治上产生严重影响的。 [单选题]男,6个月,右阴囊有一包块,平卧安静时包块明显缩小或消失。2小时前因哭闹包块掉出,伴呕吐,不停哭闹,精神萎靡,右阴囊可见一似梨状包块,最可能的诊断是
A.交通性鞘膜积液; B.睾丸炎; C.嵌顿疝; D.睾丸发育异常; E.睾丸扭转; [单选题]电力系统自动装置可分为()和自动调节装置两大类。
A..自动操作装置 B..同步发电机励磁自动调节装置 C..电力系统硅整流装置 [判断题]傅里叶变换存在的充分条件为信号满足绝对可积。 ( )
A.正确 B.错误 我来回答: 提交
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