With Airbus’ giant A380 airliner about to take to the skies, you might think planes could not get much bigger-and you would be right. For a given design, it turns (1) , there comes a point where the wings become too heavy to generate (2) lift to carry their own weight. (3) a new way of designing and making materials could (4) that problem. Two engineers (5) University College London have devised all innovative way to customise and control the (6) of a material throughout its three-dimensional structure.
In the (7) of a wing, this would make possible a material that is dense, strong and load-bearing at one end, close to the fuselage, (8) the extremities could be made less dense, lighter and more (9) . It is like making bespoke materials, (10) you can customise the physical properties of every cubic millimetre of a structure.
The new technique combines existing technologies in a(n) (11) <
A. Each
B. One
C. Every
D. All

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[单选题]起吊横担时，起吊绳受力与其跟铅垂线间的夹角a的关系为( )。
A.a大些绳索受力大
B.a小些受力大
C.受力与a无关
D.受力是一样的

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[填空题]Boy, tourism really is a big business these days. It’s (36) It involves hotels, transportation, restaurants, shops, and thousands of people. The tour companies keep telling us what a good thing it is... about how much we can learn about people and (37) , but sometimes I wonder if this is really true.
A (38) that I know went abroad last summer. They traveled with a tour group. It’s interesting to (39) their experiences with some of the experiences of other people in the same tour group. My friends, (40) , had some acquaintances, or friends, actually, along the (41) of their tour. In some of the cities they were going to, they knew some local people When they got to (42) places, they could go out with some of the local people and they could eat some of the local food and maybe see some of the local (43)
Other members of the tour group, however, never got away from the group at all.

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[单选题]作业人员在距离地面高度至少（）米的工作平台作业时，应配戴安全带防止坠落。
A.1
B.2
C.3
D.4

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[多选题]线路上成段更换再用轨，若使用再用联结零件时，上道前应经过（）。
A.选配
B.整修
C.除锈
D.涂油

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[多选题]下列属于配电室设备危急缺陷的是( )。
A.断路器不能进行分合闸操作
B.隔离开关不能进行分合闸操作
C.充油设备大量喷油
D.绝缘试验超标准。

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[单选题]HXD3电力机车应能以( )km/h速度安全通过半径为125m的曲线。
A.3
B.5
C.7

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[单选题]常用电缆分支箱分为美式电缆分支箱和欧式电缆分支箱。財
A.正确
B.错误

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[单项选择]工程项目进度计划采用资源有限—工期最短的优化方法时有下列4个调整步骤：①检查每天资源需用量是否超过资源限量。②计算网络计划每天资源需用量。③对资源冲突的各项工作作出新的顺序安排。④重复以上步骤直到出现优化方案为止。正确的顺序是( )。
A. ①-②-③-④
B. ②-①-③-④
C. ①-③-②-④
D. ③-①-②-④

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[简答题]盗窃电力设施或以其他方法破坏电力设施，危害公共安全的，应构成何种罪名？

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[单选题]执法为民是( )的宪法原则在政法工作中的具体体现
A.为人民服务
B.人权至上
C.人民的利益高于一切
D.一切权力属于人民

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[简答题]试述肝硬化产生腹水的机制。

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[简答题]

从1993年开始，浙江、重庆、吉林、山西等地在农村选举过程中，一些先富裕起来的私营企业主、个体工商户以及养殖业大户积极参加竞选，他们以较强的致富能力影响选民的投票意向，甚至还以承诺和捐赠的形式赢得多数选民的支持而当选。2005年以来，富人参政的迹象更加明显，据一些省区的民政部门统计，部分地区富人当选的比例高达百分之五六十。以浙江为例，该省新当选的13.32万名村委会成员中，“先富群体”约占30%。其中，义乌市2726名村委会成员中，“先富群体”当选比例高达60%；而在新当选的421名村委会主任中，比例更高达65%。有的地方还出现了班子参选的苗头，即几个“老板”联袂参选并“组阁”。基于这种情况，有媒体认为，财富的力量在竞选中愈来愈大，“富人治村的时代已经来临”。
请问：你认为应如何看待和应对“富人当政”的乡村治理现象？

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[单选题] 478248GB/T20234.2-2015标准中,直流充电接口中()为直流充电的正极和负极。A.1孔和2孔B.2孔和3孔C.3孔和4孔D.1孔和4孔

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[单选题] 478248GB/T20234.2-2015标准中,直流充电接口中()为直流充电的正极和负极。
A.1孔和2孔
B.2孔和3孔
C.3孔和4孔
D.1孔和4孔