The climate of Earth is changing.
Climatologists are confident that over the past century, the global average
surface temperature has increased by about half a degree Celsius. This warming
is thought to be at least partly the result of human activities, such as the
burning of fossil fuels and the clearing of forests for agriculture. As the
global population grows and national economies expand, the global average
temperature is expected to continue increasing by an additional 1.0~C to 3.5℃by
the year 2100. Climate change is one of the most important environmental issues facing humankind. Understanding the potential impacts of climate change for natural ecosystems is essential if we are going to manage our environment to minimize the negative consequences of climate change and maximize the opportunities that it may offer. Because natural ecosys A. the potential impacts of climate change for natural ecosystems B. how to minimize the negative consequences of climate change C. how to maximize the opportunities that climate change may offer D. the complex, nonlinear nature of natural ecosystems [判断题] 在故障处理过程中,检查为自动售票机纸币找零单元拾钞部卡钞,需要取下纸币找零钱箱进行维修,可直接断开纸币找零单元电源,然后取出找零箱进行维修。( )
A.正确 B.错误 [判断题]调车机车调车作业时仅变更作业方法或辆数时,不受口头传达三钩的限制。()
[单项选择]某县血站,在献血法颁布之前,通过供血获得不少利润,《中华人民共和国献血法》颁布后,有关部门对该血站进行了整顿,现在该血站的性质应属于()
A. 仍是营利性单位,只是赢利较少 B. 事业单位 C. 不以营利为目的的公益性组织 D. 卫生行政部门的派出机构 E. 以上都不是 [单选题]取得( )后,证券经纪人方可执业。
A.劳动合同 B.委托合同 C.执业前培训合格证书 D.证券经纪人证书 [单选题]与氯气泄露事故相比,哪一项是氨气泄漏事故所特有的?( )
A.扩散迅速,危害范围大 B.易造成大量人员中毒伤亡 C.污染环境,洗消困难 D.易发生爆炸燃烧 [单项选择]小儿血象特点,下列哪项正确()
A. 出生时红细胞与血红蛋白较低 B. 生后2~3天出现生理性溶血 C. 6个月以后生理性贫血逐渐改善 D. 婴儿期白细胞数比成人低 E. 小儿血小板数比成人低 [判断题]安全围栏只能预留一个出入口,设在临近道路旁边或方便进出的地方,出入口应尽量远离作业点,其大小可根据工作现场的具体情况而定,一般以3m为宜。在出入口处悬挂“在此工作!”、“从此进出!”标示牌。( )
A.正确 B.错误 [单选题]用500型万用表测量电阻均应进行机械渊零和电渊零。
A.√ B.× [单项选择]国家对出口电池产品实施( )和( )专项检测制度。
A. 审批、铅含量 B. 备案,汞含量 C. 备案,铅含量 D. 审批,汞含量 [单选题]拉绞磨尾绳不应少于两人,且应位于锚桩后面、绳圈外侧,距离绞磨不得小于( )m。
A.1 B.1.5 C.2 D.2.5 [填空题]电气设备分为高压和低压两种:高压是设备对地电压在( )v以上者:低压是设备对地电压在( )V及以下者。
[多选题]8、建设单位(甲方)与某施工单位(乙方)签订了工程施工合同,并将该工程委托了某监理单位进行施工阶段监理。由于该工程的特殊性,工程量事先无法准确确定,但工程性质清楚。按照施工合同文件的规定,乙方必须严格按照施工图及合同文件规定的内容及技术要求施工,工程量由监理工程师负责计量,按照工程计量程序,以下( )分析正确。
A.乙方对已完工的分项工程在7天内提交已完工程量报告;监理工程师接到报告后7天内按设计图纸核实已完工程量,并在计量前24小时内通知乙方,乙方为计量提供便利条件并派人参加。 B.若监理工程师收到乙方报告后7天内未进行计量,从第8天起,乙方报告中提出的工程量即视为被确认,作为工程价款支付的依据。 C.若乙方得到通知后不参加计量,监理工程师自行计量结果有效,作为工程价款支付的依据;若监理工程师不按约定时间通知乙方,使乙方不能参加计量的,计量结果无效。 D.工程变更发生后的14天内,乙方应提出变更价款报告,经监理工程师确认后相应调整合同价款;若乙方不提出,则视为该变更不涉及合同价款变更。 E.监理工程师自收到变更价款报告之日起21天内,对乙方的要求予以确认,若无正当理由不确认或答复时,自乙方的报告送达之日起21天后,视为变更价款报告已被确认;监理工程师确认增加的工程变更价款作为追加合同价款,与工程进度款不同期支付。 [判断题]存款人更改名称,但不改变开户银行以及账号,应于2个工作日内向开户银行提出银行结算账户的变更申请
A.正确 B.错误 [判断题]乘客检票不出现10人以上排队或排队时间超过5分钟。
A.正确 B.错误 [单项选择]根据下面短文回答下列问题。
People are busy working every day, so they do not have enough time to do exercises. As a result(结果), many people become too fat or too thin. To keep our bodies healthy, we have to do exercises every day. There are many kinds of exercises. Bending(弯腰) and stretching(伸展) helps us move easily. Before we play ball games or swim, it is better for us to do bending and stretching exercises first. This kind of exercise is sometimes called warm-up exercise. Running is also a good exercise. If we cannot run fast, we can jog. Jogging means running slowly. Again, before we run or jog, we must do warm-up exercises. Also, we should not run or jog in busy streets. The air there is often dirty. Some people like weight lifting(举重) because it can make their bodies strong. Also, we need to do some warm-up exercises before weight lifting. ______ makes many people too fat or too thin. A. Eating or drinking too much B. Having no time to do exercises C. Doing more exercises [单选题]原子序数为29的元素,其原子核外电子排布应为( )。
A.[
A.r]1s12s22p63s23p6
B.[
A.r]1s22s22p43s23p6
A.[ B.r]1s22s22p63s23p6 C.[ D.r]1s22s22p53s23p6 [单项选择]溃疡的定义为( )
A. 上皮表层坏死或脱落 B. 上皮浅层坏死或脱落 C. 上皮及上皮下坏死或脱落 D. 上皮下坏死或脱落 E. 以上都不是 我来回答: 提交
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