[填空题]
Andrena Gravida is the name of a wild bee declining in the
United Kingdom and the Netherlands. A {{U}} (31) {{/U}} of months ago the
recent drop in migratory bird populations was known, based on a study
{{U}} (32) {{/U}} in the Netherlands. Now there’s more troubling news
from that part of the world: a study released today by the journal Science
reports that there’s been a dramatic loss of {{U}} (33) {{/U}} among wild
bees over the past 25 years in Holland.
There’s {{U}} (34)
{{/U}} to a 70% decline in the variety and {{U}} (35) {{/U}} of bee
{{U}} (36) {{/U}} in some areas in Britain. A loss of biodiversity is
more subtle {{U}} (37) {{/U}} an overall drop in absolute numbers of
{{U}} (38) {{/U}} or plants, but it’s still {{U}} (39) {{/U}} a
problem because the {{U}} (40) {{/U}} species in an ecosystem, the more
the system {{U}} (41) {{/U}} on each one of them, and if disease or some
other {{U}} (42) {{/U}} wipes out a species,
[判断题]焦粉中的灰份对烧结生产不利。 ( )
A.正确
B.错误
[判断题]( )夹钳杠杆加修时,杠杆孔有裂纹时,须加修后镶套。
A.正确
B.错误
[判断题]阴极保护测试村测试线的绝缘电阻值应大于1.0×104Ω。( )
A.正确
B.错误
[单选题]建筑地面的沉降缝、伸缝、缩缝和防震缝,应与结构相应缝的位置( ),且应贯通建筑地面的各构造层。
A.平行
B.错开
C.一致
D. 以上均可
[判断题]使用吊车撤杆时,应先检查有无卡盘或障碍物并试拔。
A.正确
B.错误
[判断题]按质量成本的分类,过程控制所发生的费用属于鉴定成本()
[单选题]劳动法规定劳动者每日工作时间不超过8小时、平均每周工作时间不超过
A.36小时
B.40小时
C.44小时
D.48小时
[单选题]哪一种是溶血性贫血?
A.再生障碍性贫血
B.海洋性贫血
C.铁粒幼细胞性贫血
D.缺铁性贫血
E.慢性疾病贫血
[单项选择]《煤矿安全规程》规定,倾斜井巷倾角大于()时,在装煤机装岩(煤)前,在司机前方必须打护身柱或设挡板,并在耙装机前方增设固定装置。
A. 23°
B. 24°
C. 22°
D. 20°
[判断题]如客户坚持站立,营业员可自行坐下办理业务。( )
A.正确
B.错误
[判断题]员工由国家有关机关追究其责任的,不得免除按本办法的有关规定应当受到的处理。
A.正确
B.错误
[单选题].行政机关在其法定职权范围内依照法律、法规、规章的规定可以委托___实施行政许可:( )(1.00分)
A.其他行政机关
B.其他国家机关
C.有关企业、事业组织
D.具有管理公共事务职能的社会团体
[多选题]原始凭证的合法性审核的内容包括( )。
A.是否符合国家有关政策、法规和制度等规定
B.是否符合规定的审核权限
C.是否符合规定的审核程序
D.有无财务主管核准签章
[单项选择]哪一条命令用来装载所有在/etc/fstab中定义的文件系统?()
A. amount
B. mount -a
C. fmount
D. mount -f
[单选题]患者,男性,54岁。车祸脑外伤后1周,处于深昏迷状态,尿便失禁,根据奥伦自理理论护士提供的护理应属于
A.全补偿护理系统
B.部分补偿护理系统
C.补偿-辅助系统
D.支持-教育系统
E.自我护理系统
[单项选择]Scotland Yard’s top fingerprint expert, Detective Chief Superintendent Gerald Lambourne had a request from the British Museum’s Prehistoric Department to focus his magnifying glass on a mystery. "Somewhat outside my usual beat," he said.
This was not a question of Who Did It, but Who Was It. The blunt instruments he pored over were the antlers of red deer, dated by a radio-carbon examination as being up to 5,000 years old. They were used as mining picks by Neolithic man to hack flints and chalk, and the fingerprints he was looking for were of our remote ancestors who had last wielded them.
The antlers were unearthed in July during the British Museum’s five-year-long excavation at Grime’s Graves, near Thetford, Norfolk, a 93 -acre site containing more than 600 vertical shafts in the chalk some 40 feet deep. From artifacts found in many parts of Britain it is evident that flint was extensively used by Neolithic man as he slowly learned how to farm land in the period from 3,000
A. useful facts about this remote period can be learned from them
B. very few clues of this remote period have been found
C. the antlers serve as link with people at that time
D. they are valuable records of intelligent but illiterate people
[单选题]变压器是按( )原理工作的,原线圈接在交流电源上,在铁心中产生交变磁通,从而在原、副线圈产生感应电动势。
A.电磁感应
B.基尔霍夫第一定律
C.左手定则
D.基尔霍夫第二定律
[单选题]出站信号机应设在每一发车线的( )内方(对向道岔为尖轨尖端外方)适当地点。PJ73(0.01分)
A.站界标
B.预告标
C.警冲标
[多选题]胡锦涛在庆祝建党九十周年大会的讲话中指出:“90年来,我们党团结带领人民在中国这片古老的土地上,书写了人类发展史上惊天地、泣鬼神的壮丽史诗,集中体现为完成和推进了三件大事。”这“三件大事”是指( )。
A.完成了旧民主主义革命,推翻了封建统治,实现了民主共和
B.完成了新民主主义革命,实现了民族独立、人民解放
C.完成了社会主义革命,确立了社会主义基本制度
D.进行了改革开放新的伟大革命,开创、坚持、发展了中国特色社会主义
[多选题] 上下脚手架应走斜道或梯子,禁止作业人员沿( )等攀爬。 (1.0分)
A. 栏杆
B. 脚手杆
C. 梯子
D. 杆塔
[单项选择]不能在制冷装置液管上设的元件是:()。
A. 干燥器
B. 回热器
C. 液体观察镜
D. 流量计