热门试题:
[单项选择]在硬盘优化工具中,磁盘清理程序的功能是 ( )
A. 扫描是否存在无用的文件
B. 移动文件数据,使文件连续存放
C. 释放无用文件占用的磁盘空间
D. 扫描硬盘以检查它的逻辑和物理错误
[判断题]挡烟垂壁是用不燃材料制成、垂直安装在建筑顶棚、梁或吊顶下,能在火灾时形成一定的蓄烟空间的挡烟分隔设施。
A.正确
B.错误
[单选题]建设单位与其委托的工程监理应当订立()委托监理合同。
A.口头
B.书面
C.口头或书面
D.任意形式的
[单项选择]工序质量控制就是对( )的控制。
A. 施工工艺和操作规程
B. 4M1E因素
C. 质量控制点
D. 活动条件和效果
[单选题] 患者,女性,45 岁。患风心病二尖瓣狭窄 5 年,伴心房颤动 2 年。1 天前无明显原因突然出现意识障碍,最可能的原因是( )
A.发生室颤
B.心排血量减少,脑供血不足
C.心房血栓脱落,脑栓塞
D.高凝状态,脑血栓形成
E.发生房颤
[多选题]实际的直流电压源与直流电流源之间可以变换,变换时应注意的是( )
A.理想的电压源与电流源之间可以等效
B.要保持端钮的极性不变
C.两种模型中的电阻R0是相同的,但连接关系不同
D.两种模型的等效是对外电路而言
[单项选择]解除婴儿“皮肤饥渴”的有效方法是()。
A. 定时喂养
B. 语言交流
C. 定时沐浴
D. 婴儿抚触
[多选题]"鲜活货物( )达不到要求时,承运人有权拒绝承运货物。
A.质量
B.包装
C.运输条件
D.温度"
[判断题]企业防毒器具的维修、校验、更换、气瓶充装不属于气防站的工作。( )
A.正确
B.错误
[判断题]剧毒化学品不得露天堆放。
A.正确
B.错误
[单选题]在信号报警系统中,往往以不同形式、不同颜色的灯光来帮助操作人员判断故障的性质,一般来说,“平光”表示( )。
A.操作人员确认后继续存在的故障或第二故障
B.刚出现的故障或第一故障
C.工艺参数处于正常状态
[单选题]被试互感器外绝缘应完好无损.电压互感器二次侧一端必须可靠接地,为防止电流互感器二次().试验接线应牢固并采用双线连接。
A.A、开路
B.B、回路
C.C、回路开路
D.D、串联
E.略
F.略
[单选题]192mm
A.192mm
B.185~200mm
C.210mm
D.150mm
[多选题]自助加油现场,员工应提醒顾客()等安全事项。
A.禁烟火
B.禁用手机
C.盖油箱盖
D.车辆熄火加油
[多选题]掌旗的错误姿势是( )。
A.拿旗
B.抗旗
C.举旗
D.抬旗
[单项选择]
Batteries Built by Viruses
What do chicken pox, the common cold, the flu, and AIDS have in common They’re all disease caused by viruses, tiny microorganisms that can pass from person to person. It’s no wonder that when most people think about viruses, finding ways to steer clear of viruses is what’s on people’s minds.
Not everyone runs from the tiny disease carders, though. In Cambridge, Massachusetts, scientists have discovered that some viruses can be helpful in an unusual way. They are putting viruses to work, teaching them to build some of the world’s smallest rechargeable batteries.
Viruses and batteries may seem like an unusual pair, but they’re not so strange for engineer Angela Belcher, who first came up with the idea. At the Massachusetts Institute of Technology (MIT) in Cambridge, she and her collaborators bring together different areas of science in new ways. In t
A. Its width is one tenth of a hair.
B. It equals the width of a hair.
C. It is as thin as a piece of paper.
D. Its width is too tiny to measure.
[单项选择]基金资产估值不需考虑()因素。
A. 估值频率
B. 交易价格及其公允性
C. 估值方法的一致性和公开性
D. 基金的会计核算
[多选题]车站施工人员个人防护包括( )
A.荧光衣
B.安全帽
C.绝缘鞋
D.入轨需行车调度员授权
[单选题]桥枕削平范围误差要求不得超过( )。
A.10mm
B.20mm
C.30mm
D.40mm
[多项选择]团体人寿保险分为()
A. 团体定期人寿保险
B. 团体信用人寿保险
C. 团体遗属收入给付保险
D. 团体万能寿险
[单选题]机车在运行中,电机轴承异音或损坏应先( )。
A.断电对电机进行检查
B.低速运行
C.请求救援
[判断题]( )铁数据网是铁路IP数据业务的综合承载网络,是铁路通信系统及信息系统共用的数据通信基础网络平台。
A.正确
B.错误
[判断题]在正常工作中变换行驶方向时,必须将控制器扳到“零位”,当机构完全停止转动后,再行换向开车。( )
A.正确
B.错误
[单选题]人体内的淀粉在酶的作用下,可最终水解成( )
A.葡萄糖
B.麦芽糖
C.糊精
D.果糖
[单项选择]成语“衣冠禽兽”原指什么()
A. 好色的人
B. 朝廷官员
C. 穿衣服的贵族动物
D. 坏人,无赖
[多项选择]结算账户透支产品的管理方式包括()
A. 分散式
B. 自由式
C. 多点式
D. 集中式
[判断题]在20℃左右的水中解冻比在25℃左右的空气中解冻速度要快。
[单项选择]动物致人损害民事责任的构成要件不包括墨()。
A. 必须为饲养的动物
B. 必须是动物因其本能行为造成了损害
C. 必须没有免责事由
D. 没有法定抗辩事由
[判断题]采用加长锚固或全长锚固时宜选用低粘度树脂锚固剂。
A.正确
B.错误
[单选题]每季度应用自动或手动检查消防控制设备的控制显示功能,应选层试验消防应急广播设备,并试验公共广播强制转入火灾应急广播的功能,抽检数量不小于总数的( )。
A.0.1
B.0.15
C.0.2
D.0.25
[判断题]( )头皮血肿按血肿出现在头皮的不同层次分为皮下血肿、颅外血肿和颅内血肿。(1分)
A.正确
B.错误
[单选题]最可靠最有效的检查方法是()
A.B超
B.大便隐血实验
C.直肠指检
D.直肠镜取活组织检查
E.磁共振
[单项选择]Passage One
Questions 26 to 28 are based on the passage you have just heard.
A. It preserves the vitamins.
B. It breaks down the vitamins.
C. It makes the meat easier to digest.
D. It reduces the protein content.
[单项选择]
More surprising, perhaps, than the current difficulties of traditional marriage is the fact that marriage itself is alive and thriving. As Skolnick notes, Americans are a marrying people: Relative to Europeans, more of us marry and we marry at a younger age. Moreover, aster a decline in the early 1970s, the rate of marriage in the United States is now increasing. Even the divorce rate needs to be taken in this pro-marriage context: some 80 percent of divorced individuals remarry. Thus, marriage remains, by far, the preferred way of life for the vast majority of people in our society.
What has changed more than marriage is the nuclear family. Twenty-five years ago, the typical American family consisted of a husband, a wife, and two or three children. Now, there are many marriages in which couples have decided not to have any children. And there are many marriages where at least some of the children are from the wife’s previous marriage, or the husband’s, or bot
A. Americans are more traditional than Europeans
B. Americans expect more out of marriage than Europeans
C. there are more married couples in U. S. A than in Europe
D. more of Americans, as compared with Europeans, prefer marriage and they accept it at a younger age
[单选题] ( )具有体积小、制冷量大、能量可无级调节等特点。
A.离心式压缩机组
B.活塞式压缩机组
C.螺杆式压缩机组
D.涡旋式压缩机组
[单项选择]清肝明目,清肺化痰的药为
A. 木通
B. 车前子
C. 地肤子
D. 猪苓
E. 金钱草
[单项选择]以下选项中不是血栓性血小板减少性紫癜表现的一项是()
A. 免疫性溶血性贫血
B. 血小板减少
C. 神经精神异常
D. 肾脏损害
E. 发热
[多选题] 发票异常分析的方法有哪些()
A.大额发票登记与核查
B.非油品发票核查
C.多笔开票单位发票的核查
D.大额发票登记与核查