更多“在金属材料中，声发射现象一般来源于（）、（）、（）、（）以及”相关的问题
某企业年末计提坏账准备金前，“坏账准备”账户已有贷方余额3万元，年末“应收账款”余额为800万元，其它应收款余额为109万元，坏账准备金计提比例为3‰，则该企业当年可在税前扣除的坏账准备金计提数为（ ）。A．24000元 B．25000元 C．15450元 D．45450元
A.24000元
B.25000元
C.15450元
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女性，26岁。头晕、乏力，2年来月经量多，浅表淋巴结及肝、脾无肿大，HGB62g/L，WBC7.0×109/L，PLT175×109/L，血片可见红细胞中心淡染区扩大，网织红细胞计数0.005。明确诊断需做的检查应除外（）。
A.血清铁和总铁结合力 B.染色体检查 C.骨髓检查 D.血清铁蛋白检查 E.MCV，MCH，MCHC
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Which of the following cities is the capital of New Zealand?
A.Christchurch.
B．Dunedin.
C．Auckland.
D．Wellington.
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下面哪些属于大豆的品种（）。
A.红豆
B.黄豆
C.青豆
D.绿豆
E.黑豆
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固定卷扬式和液压活塞杆式船闸启闭机适用于（）。
A.浮动闸门
B.三角闸门
C.弧形闸门
D.人字门
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国家实行（）制度。河道采砂许可制度实施办法，由国务院规定。
A.河道采砂许可
B.河道采砂准入
C.河道采砂批准
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The Alaska Pipeline The Alaska pipeline starts at the frozen edge of The Arctic Ocean. It stretches southward across the largest and northernmost state in the United States, ending at a remote ice-free seaport village nearly 800 miles from where it begins. ’It is massive in size and extremely complicated to operate. The steel pipe crosses windswept plains and endless miles of delicate tundra that tops the frozen ground. It weaves through crooked canyons, climbs sheer mountains, plunges over rocky crags, makes its way through thick forests, and passes over or under hundreds of rivers and streams. The pipe is 4 feet in diameter, and up to 2 million barrels (or 84 million gallons) of crude oil can be pumped through it daily. Resting on H-shaped steel racks called "bents," long sections of the pipeline follow a zigzag course high above the frozen earth. Other long sections drop out of sight beneath spongy or rocky ground and return to the surface later on. The pattern of the pipeline’s up-and-down route is determined by the often harsh demands of the arctic and subarctic climate, the tortuous lay of the land, and the varied compositions of soil, rock, or permafrost ( permanently frozen ground). A little more than half of the pipeline is elevated above the ground. The remainder is buried anywhere from 3 to 12 feet, depending largely upon the type of terrain and the properties’ of the soil. One of the largest in the world, the pipeline cost approximately $ 8 billion and is by far the biggest and most expensive construction project ever undertaken by private industry. In fact, no single business could raise that much money, so 8 major oil companies formed a consortium in order to share the costs. Each company controlled oil rights to particular shares of land in the oil fields and paid into the pipeline-construction fund according to the size of its holdings. Today, despite enormous problems of climate, supply shortages, equipment breakdowns, labor disagreements, treacherous terrain, a certain amount of mismanagement, and even theft, the Alaska pipeline has been completed and is operating.
A．climateB．lay of the land itselfC．local vegetationD．kind of soil and rock
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责任编辑检查付印清样，应检查（ ）。
A.排版格式是否统一 B.辅文内容是否齐全 C.图、表是否有污点或断线 D.版心位置是否平齐 E.校对质疑的问题是否都已经修改
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(四) [背景资料] 某建设单位准备建一座图书馆，建筑面积5000m2，预算投资400万元，建设工期为10个月。工程采用公开招标的方式确定承包商。按照《中华人民共和国招标投标法》和《中华人民共和国...在上述招标过程中，作为该项目的建设单位其行为是否合法原因何在
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根据《中国共产党机关公文处理条例》规定，下列不属于党的机关公文的是( )。
A．指示 B．通报 C．批示 D．决议
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在CSS样式中,属性和属性值之间用()分开。
A. , B. ; C. : D. 空格
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任意横截面上的剪力在数值上等于其右侧梁段上所有荷载的代数和,向上的荷载在该截面产生正剪力,向下的荷载在该截面产生负剪力。
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我国现阶段强制推行建设工程监理制度的手段包括（）。
\tA．经济手段
\tB．技术手段
\tC．行政手段
\tD．金融手段
\tE．法律手段
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学生有姓名、年龄、爱好等特征，用概念模型描述“学生”对象时，“学生”是（）
A.联系
B.主键
C.实体
D.属性
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患者男性，32岁。因头痛经常服用止痛剂近2年。近日上腹部不适，昨日白天突然呕血约200ml。此时应首选的检查方法是
A．吞棉线试验
B．X线钡餐检查
C．CT检查
D．急诊内镜检查
E．B超检查
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参考答案
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