Canada occupies about ______ of the-我要搜题网

[单项选择]以下说法正确的是（）。
A. 线框拥用明暗效果
B. 明暗是用彩色描述一个对象，使其看起来像一个实体
C. 模型在3ds max视口中只能创建一个几何对象
D. 场景中的对象只有几何体

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[多项选择]设备基础验收时，提供的移交资料包括( )。
A. 基础结构外形尺寸、标高、位置的检查记录
B. 隐蔽工程验收记录
C. 设计变更及材料代用证件
D. 设备基础施工方案
E. 设备基础质量合格证明书

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[判断题]
利润表是反映企业一定日期经营成果的会计报表。（　）
A.正确
B.错误

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[判断题]协商民主是实现党的领导的重要方式，是我国社会主义民主政治的特有形式和独特优势。
A.正确
B.错误

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[简答题]

背景资料
某沥青混凝土路面工程，路面结构形式自上而下依次为：上面层4cm AC—6(I)中粒式沥青混凝土、中面层6cm AC—25(I)粗粒式沥青混凝土，下面层8cm AC—25(I)粗粒式沥青混凝土，工程量为：上面层482，200m²，中面层484，200m²，下面层470，100m²，施工有效工期为200天。某企业准备使用一台3000型沥青混凝土拌和站进行拌和，拌和站的有关参数为：搅拌器每次搅拌量3000kg，加料时间6s；混合料搅拌时间41s；成品料卸料时间5s。一台摊铺宽度为 12m的超大型摊铺机进行摊铺。
问题：

分析沥青混凝土摊铺机是否能满足施工要求？

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[单选题]（）是车体的基础，它接受车体和所装货物的重量，并通过上、下心盘传给走行部。
A.车轮
B.制动装置
C.缓冲器
D.车底架

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[判断题]在土质疏松的地方，抱杆脚应用浮土垫牢。
A.正确
B.错误

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[单项选择]在成人，出现休克体征时的出血量占总循环血量的
A. 10%
B. 15%
C. 20%
D. 25%
E. 30%

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[单选题]普速线路曲线上实设最大超高在双线上不大于( )。
A.75mm
B.90mm
C.125mm
D.150mm

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[单项选择]

Music comes in many forms; most countries have a style of their own. (56) the turn of’ the century when jazz was born, America had no prominent (57) of its own. No one knows exactly when jazz was. (58) , or by whom. But it began to be (59) in the early 1900s. Jazz is America’s contribution to (60) music. In contrast to classical music, which (61) formal European traditions, jazz is spontaneous and free form. It bubbles with energy, (62) the moods, interests, and emotions of the people. In the 1920s jazz (63) like America, and (64) it does today.
The (65) of this music are as interesting as the music (66) . American Negroes, or blacks, as they are called today, were the jazz (67) . They were brought to Southern States (68) slaves. They were sold to plantation owners and forced to work long (69) . When a Negro died his friend and relatives
A. discovered
B. acted
C. invented
D. designed

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[单项选择]男性，60岁，因上腹痛行胃镜检查示胃体、胃窦、十二指肠球部、降段多发溃疡，抑酸剂治疗敷果欠佳，胃液pH1。为明确诊断应做的检查是（）。
A. 五肽胃泌素刺激试验
B. 大便潜血
C. 针刺试验
D. 胃镜十活检
E. 结肠镜

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[单选题]A-B-001 5 2 5
下列属于单法兰液位计计量时，液位计显示偏高并分时段波动的原因是（）。
A.负压法兰下部设备填料出现堵塞
B.罐体排气不畅
C.显示模块损坏
D.液位计无电

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[单项选择]目前，我国常用的驱砷药物是
A. 丙磺酸钠
B. 丁二磺酸钠
C. 二巯基丁二磺酸钠
D. 硒制剂
E. 硝苯地平

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[判断题]我们把在一定条件下，电解槽发生阳极效应的阳极电流密度称为临界电流密度。( )
A.正确
B.错误

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[单选题]隧道、下承式桥梁内和天桥、跨线桥、高架候车室下进行测量时，原则上使用（）测量。
A.激光测量仪
B.绝缘杆
C.线坠
D.道尺

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[单选题]井冈山革命根据地的创建，最主要的意义是
A.开始游击战争的尝试
B.揭开了中国革命从城市转入农村的序幕
C.创建人民军队的开始
D.点燃了“工农武装割据”的星星之火

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[单项选择]水俣病是因为患者进食了相当量的下列哪种食物或水而引起（）
A. 含汞水
B. 含甲基汞的食物
C. 含铜食物
D. 含铜水
E. 含砷食物

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[判断题]如压痛关节数和肿胀关节数各改善20%以上，剩下5项中至少2项改善20%以上称病情即达到了美国风湿病学会（ACR）20响应标准
A.正确
B.错误

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[多选题]报废物资入库时需要提供哪些主要资料。（）
A.报废设备清册
B.资产损失报告（若存在资产损失）
C.鉴定报告及审批表
D.报废物资转让审批表

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[单选题]鸣笛礼中呜笛消防车数量通常为()辆,具体车数、队形根据环境和场地等情况确定
A.5-10
B.6-10
C.7-15
D.7-20

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[单项选择]

In Britain, people have different altitudes to the police. Most people generally (21) them and the job they do—although there are certain people who do not believe that the police (22) have the power that they do.
What does a policeman actually do It is not (23) job to describe. After all, a policeman has a number of jobs in one. A policeman often has to control traffic. either (24) foot in the centre of a town, or in a police car on the roads. Indeed. in Britain, he might he in the Traffic Police and spend all, or a lot of, his time (25) up and down main roads and motorways. A traffic policeman has to help keep the traffic moving, stop (26) motorists and help when there is an accident.
A policeman has to help keep the (27) , too. If there is a fight or some other disturbance, we (28) the police to come and restore order. And they often have to deal with situation at great risk to their
A. on
B. by
C. under
D. with