热门试题:
[单选题]按作业人员自身的人体电位来划分,带电作业可划分为()三种作业方式。
A.A.高空作业、地面作业、斗中作业
B.B.地电位作业、斗臂车作业、绝缘杆作业
C.C.等电位作业、绝缘手套作业、中间电位作业
D.D.地电位作业、中间电位作业、等电位作业
[单选题]最安全可靠的隔绝办法是()
A.关闭有关阀门
B.加堵盲板
C.清洗置换
D.停止生产
[单项选择]防止悬吊的物件或起重臂下落,或使运行中的机构降低速度后最终停止的零部件名称是()。
A. 减速器
B. 连锁开关
C. 制动器
D. 限位开
[单选题]非风动卸砟车边走边卸时,先停车确认,应以( )时速边走边卸,并及时清理限界内的道砟。
A.5~10km/h
B.8~15km/h
C.10~15km/h
D.15~20km/h
[单选题]关于施工现场安全警示标志制作与设置要求的说法,正确的是 ( )
A.可根据建筑行业特点自行制作
B.应依据设置的摆放,提前设置地点和位置
C.必须符合国家标准
D.必须以图形表示
[单选题]开断电缆前,必须与电缆图纸核对是否相符,并使用专用仪器确定作业对象电缆停电后,用接地的带绝缘柄的铁钎或电缆试扎装置扎入电缆芯后方可作业。扶绝缘柄的人必须戴绝缘手套和护目镜并站在绝缘垫上,并采取防( )。
A.放触电
B.灼伤措施
C.防雷防触电
D.以上均不是
[多选题]区间被()、()占用,或相邻两站已办妥闭塞及出站(跟踪)调车手续时称为区间占用。
A.列车
B.车列
C.车辆
D.机车车辆
[不定项选择题]对瓣叶严重钙化,左房内有血栓者
A.无需特殊处理,内科治疗
B.人工瓣膜置换术
C.直视分离术
D.闭式分离术
E.经皮球囊二尖瓣成形术
[单项选择]A growing taste for shark steaks and shark-fin soup has for the first time in 400 million years put the scourge of the sea at the wrong end of the food chain. Commercial landings of this toothsome fish have doubled every year since 1986, and shark populations are plunging. It is hardly a case of good riddance. Sharks do for gentler fish what lions do for the wildebeest; they check populations by feeding on the weak. Also, sharks apparently do not get cancer and may therefore harbor clues to the nature of the disease. Finally, there is the issue of motherhood. Sharks are viviparous. That is, they bear their young alive and swimming(not sealed in eggs)after gestation periods lasting from nine months to two years. Shark mothers generally give birth to litters of from eight to twelve pups and bear only one litter every other year. This is why sharks have one of the lowest fecundity rates in the ocean. The female cod, for example, spawns annually and lays a few million eggs at a time. If three quarters of the cod were to be fished this year, they could be back in full force in a few years. But if humans took that big of a bite out of the sharks, the population would not recover for 15 years. So, late this summer, if all goes according to plan, the shark will join the bald eagle and the buffalo on the list of managed species. The federal government will cap the U. S. commercial catch at 5,800 metric tons, about half of the 1989 level, and limit sportsmen to two sharks per boat. Another provision discourages finning, the harvesting of shark fins alone, by limiting the weight of fins to 7 percent of that of all the carcasses. Finning got under the skin of environmentalists, and the resulting anger helped to mobilize support for the new regulations. Finning itself is a fairly recent innovation. Shark fins contain noodlelike cartilaginous tissues that Chinese chefs have traditionally used to thicken and flavor soup. Over the past few years rising demand in Hong Kong has made the fins be worth considerably more to the fisherman thanthe average price of about $ 10 a pound. But can U. S. quotas save shark species that wander the whole Atlantic The blue shark, for example, migrates into the waters of something like 23 countries. John G. Casey, a biologist with the National Marine Fishheries Service Research Center in Narragansett, R.I. , admits that international coordination will eventually be necessary, but he supports U. S. quotas as a first step in mobilizing to other nations. Meanwhile the commercial fishermen are not waiting for the new rules to take effect. "There is a pre-quota rush on sharks," Casey says, "and it"s going on as we speak."An irony resulting from the announcement that sharks will be placed on the managed list is______.
A. we will now find out less about cancer, so in effect by saving the sharks, we are hurting ourselves
B. sharks are far more dangerous to other fish than we are to them
C. more chefs are now using the cartilaginous tissues found in shark fins
D. more sharks are being killed now than before the announcement
[单项选择]资产评估报告书是建立评估档案、归集评估档案资料的( )。
A. 重要目的
B. 主要依据
C. 重要环节
D. 重要信息来源
[单选题]该患者的药总煎出量应为 查看材料
A.100~200ml
B.300~400ml
C.400~500ml
D.400~600ml
E.500~600ml
[单选题]( )进出口狭小,自然通风不良,易造成有毒有害、易燃易爆物质聚集或含氧量不足,在未进行气体检测或检测不合格的情况下冒然进入,可能造成作业人员中毒、有限空间燃爆事故。
A.有限空间
B.主变本体
C.开关柜
D.电缆沟
[判断题]按有关规定组织强制清除或者拆除相关障碍物、妨碍物,所需费用由违法行为人承担。
A.正确
B.错误
[单选题]宫内节育器的避孕原理是
A.阻止孕卵着床
B.改变输卵管蠕动方向
C.改变宫腔内环境
D.抑制排卵
E.改变子宫内膜的功能
[判断题]对于原因未明的发热患者,最好尽快使用抗菌药物治疗()。
[单选题]下列哪个是压电式加速度传感器灵敏度的单位?( )
A.m/s2;
B.mv/(m/s2;
C.cm/s,
D.mv/(cm/s
[单选题] 低温腐蚀是( )腐蚀单选
A. 碱性
B. 酸性
C. 中性
D. 氧化
[单选题]025322道岔表示器的显示:夜间为(),表示道岔位置开通直向。
A.月白色灯光
B.紫色灯光
C.白色灯光
D.黄色灯光
[单项选择]开挖风化严重,节理发育或岩层产状对边坡稳定不利的石方,宜选用()。
A. 预裂爆破
B. 定向爆破
C. 微差爆破
D. 洞室爆破
[填空题]What are needed to submit for an exchange student on an exchange program
Application Form, 8 copies of photos, a copy of their education diploma and ______ .
[判断题]擅自离队、旷工或者无故逾假不归,计四日以上七日以内的, 予以记过或者记大过。( )
A.正确
B.错误
[单项选择]池塘在一个饲养周期过后,随着商品鱼类的捕捞出,池塘中的营养成分会大量减少。解决这个问题的最佳方法是()
A. 施肥
B. 大量注入新水
C. 更换新的养殖地点
D. 以上方法都可行
[单项选择]认知行为理论在社会工作实务中运用的实务原则是()。
A. 尊重个人自主决定和信念
B. 帮助服务对象改变错误的认知,建立正确的认知
C. 在正确认识的基础上建立良好的专业关系
D. 界定对服务对象问题看法的原则
[判断题]手持式侦检仪器,长按MODE+Y/+键进入菜单界面。( )
A.正确
B.错误
[单选题]动火作业尽可能地把动火(____)压缩到最低限度。
A.时间和范围
B.时间和人员
C.人员和范围
D.时间、范围和人员
[单选题] "下列哪项不属于记账凭证( )
A.收款凭证
B.付款凭证
C.转账凭证
D.原始凭证
"
[简答题](一)
[背景资料]
某豪华酒店工程项目,18层框架混凝土结构,全现浇混凝土楼板,主体工程已全部完工,经验收合格。进入装饰装修施工阶段,该酒店的装饰装修工程由某装饰公司承揽了施工任务,装饰装修工程施工工期为150d,装饰公司在投标前已领取了全套施工图纸,该装饰装修工程采用固定总价合同,合同总价为720万元。
该装饰公司在酒店装修的施工过程中采取了以下施工方法:地面镶边施工过程中,在靠墙处采用砂浆填补;在采用掺有水泥拌和料做踢脚线时,用石灰浆进行打底;木竹地面的最后一遍涂饰在裱糊工程开始前进行;对地面工程施工采用的水泥的凝结时间和强度进行复验后开始使用。
在水磨石整体面层施工过程中,采用同类材料以分格条设置镶边。
1.该酒店的装饰装修工程合同采用固定总价是否妥当为什么
[单选题]利用精测网做好轨道几何状态检测、基础沉降、()等工作。
A.道床沉降
B.轨枕沉降
C.构筑物变形监测
D.轨道沉降
[单选题]违反规定使用明火作业或者在具有火灾、爆炸危险的场所吸烟、使用明火,情节严重者处____天的拘留。
A.七日以下
B.五日以下
C.三日以下
D.一日以下
[单项选择]好发于儿童的卵巢肿瘤是( )
A. 内胚窦瘤
B. 库肯勃瘤
C. 浆液性囊腺癌
D. 畸胎瘤
E. 颗粒细胞瘤
[多选题]大岗位融合推进要求岗位以( )为重点,补齐员工岗位素质能力短板。
A.岗位工作手册
B.岗位管理手册
C.岗位必备技能
D.应知应会
[单项选择]客户以书面形式提交信用申请,有利于()。
A. 客户获得授信审批
B. 客户提高信用额度
C. 扩大企业的市场份额
D. 规范企业的内部管理
[单选题]碘值是指( )。
A.100g样品相当于加碘的克数
B.1g样品相当于加碘的克数
C.100g样品相当于加碘的毫克数
D.1g样品相当于加碘的毫克数
[单项选择]引起小儿佝偻病的主要原因是()
A. 缺钙
B. 缺乏维生素D
C. 甲状旁腺功能不全
D. 食物中热能和蛋白质不足
E. 食物中钙磷比例不当