热门试题:
[单项选择]
Water Resource
Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts (干旱)are causing famine and distress in some areas, and industrial and agricultural by-products are polluting water supplies. Since the worlds population is expected to double in the next 50 years, many experts think we are on the edge of a widespread water crisis.
But that doesn’t have to be the outcome. Water shortages do not have to trouble the world—if we start valuing water more than we have in the past. Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually free resource of which we can use as much as we like in any way we want.
Instead, for all uses except the domestic demand of the poor, governments should price water to refl
A. be reduced to the minimum
B. stimulate domestic demand
C. correspond to its real value
D. take into account the occurrences of droughts
[单选题]区别乳腺内良性肿瘤与恶性肿瘤的主要临床依据是(1.00分)
A.肿瘤的体积
B.肿瘤的部位
C.肿瘤的硬度
D.肿瘤的活动度
E.肿瘤的浸润情况
[单项选择]赵某,女,双膝关节痛已3年,时轻时重,近1周膝部红肿灼热,痛不可触,苔黄,脉滑。最宜选择哪种治疗方法
A. 皮内针
B. 艾灸
C. 耳针
D. 水针
E. 刺络拔罐
[单项选择]男,66岁,面浮身肿,腰以下肿甚,按之没指,怯寒神疲,腰酸肢厥,面色恍白,尿量减少,舌淡苔白,脉沉细,选用何方治疗
A. 实脾饮
B. 真武汤
C. 五皮饮
D. 防己黄芪汤
E. 以上均不宜
[单选题]水准仪的基本操作,步骤正确的是( )。
A. 安置→瞄准→粗平→精平→读数
B.安置→瞄准→精平→粗平→读数
C.安置→粗平→精平→瞄准→读数
D.安置→粗平→瞄准→精平→读数
[单选题]当用惰性气体置换空气时,置换管道末端放散管口气体中含氧量不大于( 通密度的单位名称)时,置换合格。
A.1%
B.2%
C.3%
D.5%
[单项选择]
A
It was a village in India. The people were poor. However, they were not unhappy. After all, their forefathers had lived in the same way for centuries.
Then one day. Some visitors from another city arrived. They told the villagers there were some people elsewhere who liked to eat frog’ s legs. However, they did not have enough frogs of their own, and so they wanted to buy frogs from other place.
This seemed like money for nothing. There were millions of frogs in the fields around, and they were no use to the villagers. All they had to do was to catch them. Agreement was reached, and the children were sent into the fields to catch frogs. Every week a truck arrived to collect the catch and hand over the money. For the first time, the people were able to dream of a better future. But the dream didn’t last long.
The change was hardly noticed at first, but it seemed as if the crops were not doi
A. Because the frogs were easy money.
B. Because they need money to buy medicine.
C. Because they wanted to please the visitors.
D. Because the frogs made too much noise.
[单项选择]慢性缩窄性心包炎,与下列疾病相鉴别,应除外()
A. 二尖瓣关闭不全所致的心力衰竭
B. 心肌病
C. 肝硬化
D. 二尖瓣狭窄所致的心力衰竭
E. 主、肺动脉间隔缺损
[单选题]不得穿着非标或(),严禁私自拆改结构、去除附件。
A.正常装备
B.保质期内装备
C.过期防护装备
D.防护装备
[单项选择]BG004对位差较大的管道,液压试验应以()压力为准,但最低点压力不得超过管道组成件的承受力。
A. 最高点
B. 中间点
C. 最低点
D. 任意点
[单项选择]患者男性,52岁,从事放射科工作20余年。近日双手出现反复皲裂及溃疡,经久不愈,溃疡表面结痂,边缘凹凸不平,可能的病理诊断为()
A. 基底细胞癌
B. 纤维肉瘤
C. 移行细胞癌
D. 高分化鳞癌
E. 高分化腺癌
[单选题]目前最先进的红外热像仪,其温度灵敏度可达( )℃。
A.0.05
B.0.06
C.0.08
D.0.1
[判断题]车机联控作业标准中规定,遇重要信息及危及行车安全的信息,相关人员应立即向列车调度员(车站值班员)报告,列车调度员(车站值班员)应采取果断措施。()
A.正确
B.错误
[单选题]()技术发展逐渐成熟,生态环保效益显著,但由于设备利用率和服务价格低,近期除油轮码头外,其余项目经济性较差,推广普及需要政府补贴等支持政策扶持。未来考虑船舶受电设施改造比例提高后岸电利用率增加,市场发展成熟并逐渐形成合理服务收费价格,岸电经济性将改善提升。
A.A、电蓄冷
B.电(蓄热)锅炉
C.电阻炉
D.港口岸电
[简答题]38.刘某为甲公司的董事,甲公司与乙公司签订一购销合同,甲公司在预先支付了数额巨大的货款后得知,乙公司已经严重亏损,资不抵债,没有任何履约能力,且甲公司的预付款已被当地银行划走抵充银行欠款。刘某得知这一消息,认为此次公司损失巨大,必定会影响本公司股票价格。他首先将自己手中的本公司股票抛售,还建议好友王某等人也抛出该股票。半月后,甲乙公司购销合同事宜通过媒体向社会公布,消息一出,甲公司股价跌落50%。
依据《证券法》,应对刘某如何处理
[多项选择]工作流应用有哪些主要类型()
A. 运输工作流
B. 协作工作流
C. 生产工作流
D. 管理工作流
[单项选择]作业活动分析可分为简单分析和详细分析,下面不属于简单分析的是()
A. 选择活动类型
B. 明确活动的方式
C. 分析选择活动的理由
D. 对文化程度进行分析
E. 确定活动场地
[多选题]在FusionComoute中,聚合网口的绑定模式有哪些?
A.DPDK驱动的主备模式
B.基于源目的IP和端口负荷分担
C.基于轮询的负荷分担
D.主备
[多选题]下列关于我国期货交易所对商品期货交易保证金比率的说法中,正确的有( )。
A.对期货合约上市运行的不同阶段规定不同的交易保证金比率
B.随着合约持仓量的增大,交易所将逐步提高该合约交易保证金比例
C.当某期货合约出现连续涨跌停板的情况时,交易保证金比率相应提高
D.交易所根据合约特点设定最低保证金标准,并可根据市场风险状况等调节保证金水平
[多项选择]采用普通顶管法施工,顶铁与管口之间采用缓冲材料衬垫,当顶力接近管节材料的允许抗压强度时,管口应增加( )。
A. V形顶铁
B. U形顶铁
C. 三角铁
D. 环形顶铁
E. 橡胶垫圈
[多选题] 坠落悬挂安全带的安全绳不应位于腋下腰侧或腹部,安全绳同主带的连接点应固定在佩戴者的( )。
A.后背;
B.后腰;
C.手腕;
D.胸前。
[单选题]动车组列车在区间被迫停车后须返回后方站时,车站值班员确认动车组列车至后方站间已空闲后,经( )同意,通知司机返回。司机根据车站值班员的通知,在动车组列车运行方向(折返)前端操作,运行速度不得超过40km/h,按进站信号机显示进站。《技规》第373条
A.后方站
B.车辆乘务员(随车机械师)
C.车站值班员
D.列车调度员
[判断题]游车停稳之前井口人员不能进行摘、扣吊卡作业。
A.正确
B.错误
[判断题]蒸馏过程按蒸馏方式分类可分为简单蒸馏、平衡蒸馏、精馏和特殊精馏。 ( )
A.正确
B.错误
[多选题]井筒内的压力主要有_____
A. 液柱压力
B. 波动压力
C. 圈闭压力
D. 地层压力
[单项选择]CA6140型车床主轴孔锥度是莫氏()号。
A. 3
B. 4
C. 5
D. 6
[单选题]能辨别面额,票面剩余二分之一(含)至四分之三(不含)以下,其图案,文字能按原样连接的残缺、污损人民币,法人机构应向持有人按原面额的( )兑换
A.全额
B.一半
C.四分之三
D.四分之一
[判断题] 低碳钢、低合金高强度钢中含有较高的氧时,极易发生热应变脆化现象。 ( )
A.正确
B.错误
[单项选择]钻井液中加入电解质的离子价数越高越()。
A. 易聚结
B. 不易聚结
C. 易脱附
D. 都不对
[单项选择]下腔静脉内径在何种运动时塌陷()。
A. 浅呼吸
B. 运动时
C. 吸气时
D. 呼气时
E. Valsalva动作
[判断题]自动闭塞区段,遇两架及以上发车进路信号机故障时,准许一次性交付一张绿色许可证,此时应将故障的发车进路信号机号码在绿色许可证中按发车方向依次注明。
A.正确
B.错误
[判断题]嵌档下降,离箱30CM减速2档以内进入。
A.正确
B.错误
[单项选择]患者,男,50岁。半年来经常突发胸骨后疼痛,有窒息感,持续约1~5分钟,休息后迅速缓解。心电图示ST段下移及T波倒置。应首先考虑的是()。
A. 稳定型劳累性心绞痛
B. 初发劳累性心绞痛
C. 恶化型劳累性心绞痛
D. 自发性心绞痛
E. 急性心肌梗死
[多选题]劳动法律关系包括( )。
A.劳动合同关系
B.劳动关系
C.劳务争议处理关系
D.劳动行政法律关系
E.劳动服务法律关系