{{B}}The
Body Clock{{/B}} Why is it that flying to New York from London will leave you feeling less tired than flying to London from New York The answer may be a clear case of biology not being able to keep up with technology. Deep inside the brain there is a "clock" that governs every aspect of the body’s functioning: sleep and wake cycles, levels of alertness, performance, mood, hormone levels, digestion, body temperature and so on. It regulates all of these functions on a 24-hour basis and is called the biological clock. This body clock programmes us to be sleepy twice a day, between 3-5 am and again between 3-5 pm. Afternoon tea and nap are all cultural responses to our natural biological sleepiness in the afternoon. One of the major causes of the travellers’ malady known A. Crossing different time zones. B. Changing light and activity levels. C. Working longer hours. D. Watching out of the plane for a long time. [简答题]请描述一下工程建设中,对于保护地线、电源线的要求或应注意事项?
[判断题]化工厂生产区登高(离地面垂直高度)2m必须系安全带。( )
A.正确 B.错误 [单项选择]保持临时用房、临时设施与在建工程的防火间距是防止施工现场火灾相互蔓延的关键。可燃材料堆场及其加工场、固定动火作业场与在建工程的防火间距不应小于()m。
A. 5 B. 10 C. 15 D. 20 [判断题]99.耙斗装载机不能用于有瓦斯或煤尘爆炸危险的矿井中。
A.正确 B.错误 [判断题]原则上,核心涉密人员因私出国(境)不予批准。( )
A.正确 B.错误 [判断题]出口配发(打印路单)操作程序第3步是进入“勾核配发”。
[简答题]装用液力挺杆有何优点?
[单选题]处分决定、解除处分决定自( )之日起生效。
A.作出 B.下达 C.宣布 D.送达 [单选题]某日,王某在网上发帖,声称自己在本市取水源投入30斤“毒鼠强”,并配有投放照片。在发帖后造成市民的严重恐慌。后经证实,王某投放的是淀粉,并非“毒鼠强”。对王某的行为,应当( )。
A.以投放危险物质罪追究刑事责任 B.以投放虚假危险物质罪追究刑事责任 C.以编造、故意传播虚假信息罪追究刑事责任 D.以寻衅滋事罪追究刑事责任 [单项选择]Non-indigenous (non-native) species of plants and animals arrive by way of two general types of pathways. First, species having origins outside the United States may enter the country and become established either as free-living populations or under human cultivation-for example, in agriculture, horticulture, aquaculture, or as pets. Some cultivated species subsequently escape or are released and also become established as free-living populations. Second, species of either U.S. or foreign origin and already within the United States may spread to new locales. Pathways of both types include intentional as well as unintentional species transfers. Rates of species movement driven by human transformations of natural environments as well as by human mobility-through commerce, tourism, and travel-greatly exceed natural rates by comparison. While geographic distributions of species naturally expand or contract over historical time intervals (tens to hundreds of years), species’’ ranges rarely
A. earth fertility. B. import restrictions. C. natural obstacles. D. fire disasters. [填空题]LC振荡电路是指用电感L和电容C组成选频网络的振荡电路,用于产生(____)正弦波信号。
[单项选择]相对于数据库系统,文件系统的主要缺陷有数据关联差、数据不一致性和______。
A. 可重用性差 B. 安全性差 C. 非持久性 D. 冗余性 [判断题]中暑初期应迅速到通风阴凉的地方,平卧并解开衣扣,松开或脱去衣服,如衣服被汗水湿透应更换降温,头部可捂上冷毛巾,可用酒精,白酒,冰水或冷水进行全身擦拭然后用扇或电扇吹风,加速散热。
A.正确 B.错误 [单选题]金黄色葡萄球菌感染常可引起
A. 脓肿 B. 蜂窝织炎 C. 假膜性炎 D. 增生性炎 E. 出血性炎 [单选题]
代维公司的保密义务在()均为有效 A.双方合作期间 B.协定时间内 C.双方合作期间以及合作结束后 D.合作结束后 [不定项选择题]男性,70岁,咳嗽、咳痰伴喘息20余年,加重1周,2天来高热嗜睡。查体:嗜睡、球结膜水肿,皮肤红润,唇发绀不著,BPl70/97mmHg,呼吸30?次/分,脉搏120次/分,无颈静脉怒张,双肺可闻干湿啰音,心脏不大,肝脾未触及,双下肢轻度凹陷性水肿,双侧腱反射减弱。WBC12.8乘以十的九次方/L,N82%。
为明确诊断应尽快进行以下哪项检查
A.头颅CT B.血气分析 C.血培养 D.脑电图 E.腰穿 [填空题]浓硫酸冷却器出口硫酸温度( ):( )
[单选题]打开差压表时,应注意先开启( )。
A.高压阀 B.低压阀 C.平衡阀 D.都可以 [单选题]有限空间作业气体监测宜优先选择连续监测方式,若采用间断性监测,间隔不应超过( )
A.半小时 B.一小时 C.两小时 [简答题]
2013年3月18日,甲机械公司与乙融资租赁公司接洽融资租赁某型号数控机床事宜。同年4月1日,乙按照甲的要求与丙精密设备公司签订了购买1台某型号数控机床的买卖合同。丁以乙的保证人身份在该买卖合同上签字,但合同中并无保证条款,丙和丁亦未另行签订保证合同。乙和丙之间签订的买卖合同约定:机床价格为1200万元;乙在缔约当日向丙支付首期价款400万元;丙在收到首期价款后1个月内将机床交付给甲;乙在之后的8个月内,每月向丙支付价款100万元。乙于与丙签订合同当日,与甲签订了融资租赁合同,但该合同未就租赁期届满后租赁物所有权归属作出约定。2013年5月1日,丙依约向甲交付了机床。 [多选题]化工设备立式设备装配图一般采用()。
A.主视图 B.俯视图 C.左视图 D.右视图 [判断题]苹果手机下载音乐、视频、软件、游戏必须通过iTunes软件。
[单项选择]工程师未参加隐蔽工程的验收,承包人经自行检验后,继续施工。工程师又提出对已经隐蔽的工程重新检验的要求,承包人予以了配合,则( )。
A. 检验合格,发包人承担由此发生的全部追加合同价款,赔偿承包人损失,并相应顺延工期 B. 检验不合格,承包人承担发生的部分费用,工期可以顺延 C. 检验不合格,承包人承担发生的全部费用,工期不予顺延 D. 检验不合格,承包人承担发生的部分费用,工期不予顺延 我来回答: 提交
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