热门试题:
[填空题]There is much discussion in the literature these days about how one "defines" sustainability, sustainable development, and related concepts. Many argue that the concept is useless because it cannot be "adequately defined". 46) Most of this discussion is misdirected because it attempts to cast the problem as definitional, when in fact it is a problem of prediction, and it fails to take into account the many time and space scales over which the concept of sustainability must apply. Defining sustainability is actually quite easy: A sustainable system is one that survives for some specified (finite) time. The problem is that one knows one has a sustainable system only after the fact. Thus, what usually pass for definitions of sustainability are actually predictions of what set of conditions will actually lead to a sustainable system.
47) For example, keeping harvest rates of potentially renewable resources such as trees and wildlife below rates of natural renewal should, one could argue
[单项选择]下列关于运算符重载的描述中,正确的是( )。
A. 运算符重载可以改变运算符的操作数的个数
B. 运算符重载可以改变优先级
C. 运算符重载可以改变结合性
D. 运算符重载不可以改变语法结构
[单选题] 根据《国家电网有限公司供电服务标准》,供电企业应至少在( )
前5天向客户提供订阅的电费信息。
A. 交费截止日
B. 抄表日
C. 电费发行日
D. 月底
[单选题]使用OTDR测试光纤长度时,当设置的折射率小于光纤实际折射率,测定的长度()实际光纤长度。
A.小于
B.大于
C.小于等于
D.大于等于
[单选题]试验检测《等级证书》期满后,拟继续开展公路水运工程试验检测业务的,检测机构应提前( )个月向原发证机构提出换证申请。
A.六
B.五
C.四
D.三
[判断题]空气呼吸器使用前气瓶压力不能低于25Mp对。( )(易)
A.正确
B.错误
[判断题]事前监督的监督主体在公安机关及其人民警察实施执法行为之前依法进行监督。( )
[判断题]变压器纵差动保护或电流速断保护可以反应变压器绕组、套管故障以及油箱漏油造成油面降低。( )
A.正确
B.错误
[简答题]轻型轨道车搭乘人员限乘( )(含司机、助手)。
[单选题]
属于消防法定职能的事件有( )
A.取钥匙
B.开门
C.煤气泄漏
D.排水
[判断题]因材施教要承认、接受个体间普遍存在的差异。
A.正确
B.错误
[单项选择]根据通信业务的不同可将通信系统分类,下列属于多媒体通信系统的是()。
A. 电话
B. 会议电话
C. 电报
D. 传真
[单项选择]急性腰扭伤时,如果伤及棘间韧带,检查可见()。
A. 过度前弯腰时疼痛加重
B. 腰伸展时疼痛不加重
C. 棘突之间有局限而表浅的明显压痛点
D. 以上都是
[多选题]在下列所列的软件中.( )是属于应用软件范围的
A. UCDOS
B. UNIX
C.某单位的会计核算软件
D. WPS
[单项选择]爆炸品、易燃气体、剧毒品用警示词为()。
A. 警告
B. 危险
C. 注意
[单项选择]对慢性呼吸衰竭,失代偿性呼吸性酸中毒的处理原则,最重要的是()。
A. 增加通气量
B. 持续低流量给氧
C. 积极控制感染
D. 补充碳酸氢钠纠正酸中毒
E. 治疗原发病
[判断题]在采用熔化极氩弧焊焊接铝及铝合金时,保护气只采用惰性气体,不采用其它活性气体。
A.正确
B.错误
[判断题]、20.世纪50.年代以来,小麦总产的提高主要取决于小麦种植面积的扩大。( )
A.正确
B.错误
[判断题]建设单位与其委托的工程监理单位可以口头约定的方式委托监理。
[单选题]孙某在13周岁的时候盗窃价值2000元的物品;在15周岁时抢劫价值1000元的物品,盗窃价值2000元的物品,抢夺价值3000元的物品;在17周岁时又盗窃价值4000元的物品,抢夺价值2000元的物品。在对孙某追究刑事责任时,计算其涉案财物数额应为( )。
A.抢夺5000元,盗窃4000元,抢劫1000元
B.抢夺2000元,盗窃4000元,抢劫1000元
C.抢夺2000元,盗窃6000元,抢劫1000元
D.抢夺5000元,盗窃6000元,抢劫1000元
[单项选择]
It is possible that the weather of the world may be changing. Some scientists imagine that this could even mean the beginning of another ice age. The effects of such a change in weather on human population of the world would be frightening.
Recent research suggests that the warming trend(倾向)of the past hundred years or so may be coming to an end. During the past ten years, scientists tell us that the temperature of the world has dropped a little. This would have effects on wind and rain in the weather picture.
Scientists believe clouds may be an important factor (因素) in changing the amount of heat on the earth. Another possibility is that man’s agriculture and industry ways may affect the natural weather.
The weather of the world seems to be getting( )
A. hotter
B. colder
C. warmer
D. freezing
[单项选择]治疗不孕症肾阴虚证,应首选的方剂是()。
A. 开郁种玉汤
B. 六味地黄丸
C. 养精种玉汤
D. 少腹逐瘀汤
E. 右归丸
[判断题]性别气质具有历史性,与历史时代有密切联系。
[判断题]《公安机关人民警察使用公安信息网违规行为行政处分暂行规定》共有十八条。
[填空题]
Are you always sure you know what people mean when they try to
describe their feelings to you We use both words and gestures to express our
feelings, but the problem is that these words and gestures can be interpreted in
different ways.
It is tree that a smile means the same things in
any language. So (31) laughter or crying. There are also a
number of striking similarities in the way different animals show the
(32) feeling. Does, tigers and humans, for example, often show
their teeth when they are angry. This is probably (33) such
behavior patterns are inherited rather than (34) .
Fear is another emotion that is shown in (35) the same
way all over the world. In Chinese and in English fiction, a phrase like ’he
went pale and began to tremble’ suggests that the man is (36)
very afraid or has just had a very nasty shock. However, ’he opened
his eyes wide’ is used. to suggested anger in Chinese (37)
[单选题]色谱仪气体管路的漏气检查,一般采用( )来完成。
A.打气
B.肥皂水
C.反吹气
D.清水
[多选题]调度命令无线传送系统启用后,列车调度员可向适用的列车发送调度命令,车站值班员可向适用的列车()。
A.发送调度命令
B.发送行车凭证
C.转发调度命令
D.转发运行揭示调度命令
[单选题]现场办理工作许可手续前,工作许可人应与工作票签发人核对线路名称、设备双重名称,检查核对现场安全措施,指明保留带电部位。
A.正确
B.错误
C./
D./
E./
F./
[单项选择]党政机关公文的成文日期是()的日期。
A. 公文生效
B. 公文提交
C. 公文批准
D. 公文下发
[单选题]物联网移动核心网专用网元包含()
A.NAT,AAA,HLR,MME
B.HA/CCG,S-GW,VPDN AAA,SMSG
C.P-GW,PCRF,HSS,CG槽
D.PCRF,VPDN AAA,DNS
[多选题]数据库升级和配置变更前,应备份数据文件、日志文件、()和()。
A.控制文件
B.应用文件
C.操作记录
D.配置文件
[填空题]在寒冷的冬季,户外训练应按规定穿戴防寒服装和用具,衣服、鞋袜要温暖、 适体、保持干燥。训练时间( )。
[单项选择]男,35岁,5年来出现眼光难以控制地要去看异性生殖器部位的现象,并且觉得别人都已察觉到他的行为,为此感到非常痛苦,这种现象是()。
A. 关系妄想
B. 钟情妄想
C. 内心被揭露感
D. 强迫症状
E. 广泛性焦虑