更多“ 2002年1—6月，我国通信业务收入完成218”相关的问题
The Moon, which has undergone a distinct and complex geological history, presents a striking appearance. The moon may be divided into two major terrains: the maria (dark lowlands) and the terrace( bright highlands). The contrast in the reflectivity (the capability of reflecting light) of these two terrains suggested to many early observers that the two (5) terrains might have different compositions, and this supposition was confirmed by missions to the Moon such as Surveyor and Apollo. One of the most obvious differences between the terrains is the smoothness of the maria in contrast to the roughness of the highlands. This roughness is mostly caused by the abundance of craters; the highlands are completely covered by large craters(greater than 40-50 km in diameter), while the craters (10) of the maria tend to be much smaller. It is now known that the vast majority of the Moon’’s craters were formed by the impact of solid bodies with the lunar surface. Most of the near side of the Moon was thoroughly mapped and studied from telescopic pictures years before the age of space exploration. Earth-based telescopes can resolve objects as small as a few hundred meters on the lunar surface. Close observation of (15) craters, combined with the way the Moon diffusely reflects sunlight, led to the understanding that the Moon is covered by a surface layer, or regolith, that overlies the solid rock of the Moon. Telescopic images permitted the cataloging of a bewildering array of land forms. Craters were studied for clues to their origin; the large circular maria were (20) seen. Strange, sinuous features were observed in the maria. Although various land forms were catalogued, the majority of astronomers’’ attention was fixed on craters and their origins. Astronomers have known for a fairly long time that the shape of craters changes as they increase in size. Small craters with diameters of less than 10-15 km have relatively (25) simple shapes. They have rim crests that are elevated above the surrounding terrain, smooth, bowl-shaped interiors, and depths that are about one-fifth to one-sixth their diameters. The complexity of shape increases for larger craters.
A．alteredB．substitutedC．experiencedD．preserved
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木材在长度方向上接合的结构形式一般有直齿连接、斜面胶接、（）三种方式。
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目前有“简单密码”控制的系统包括（）。
A.ABIS电子银行业务子系统 B.个人注册客户网银系统 C.网上银行公共用户普通版系统 D.网上银行公共用户升级版系统
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关于建设工程法律法规体系，( )是正确的。
A．法律的效力高于行政法规
B．部门规章的效力高于行政法规
C．行政法规的效力高于法律
D．行政法规的效力高于部门规章
E．部门规章的效力高于法律
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以下哪项不是乳腺纤维腺瘤的典型超声表现A、边界光滑B、有包膜C、内部呈均质低回声区D、导管扩张E、单
以下哪项不是乳腺纤维腺瘤的典型超声表现 A、边界光滑 B、有包膜 C、内部呈均质低回声区 D、导管扩张 E、单发或多发
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实践中所指的社区，是指进行一定的社会活动，具有某种互动关系和共同文化维系力的人类群体及其活动区域。
A.对 B.错
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关于衡量投资方案风险的下列说法中，正确的是（ ）。
A . 预期报酬率的概率分布越窄，投资风险越小B . 预期报酬率的概率分布越窄，投资风险越大C . 预期报酬率的标准差越大，投资风险越大D . 预期报酬率的离散系数越大，投资风险越大
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The communication is within business and administration, aiming at a common objective and profits for both the individuals and organizations.
A . lateral communicationB . ethnocentrismC . business communicationD . intercultural communication
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确定（）量油计时的起始、终止标线位置，（）标线清晰、完整。
A.液位计、液位计B.分离器、分离器C.压力表、压力表D.气平衡、气平衡
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A公司2011年度财务报表由ABC会计师事务所审计，在审查A公司关联实体时，以下列示的实体中不属于甲公司关联实体的有（）
A．A公司的母公司——B公司
B．A公司的姐妹实体C公司，并且C公司和A公司对其控制方都很重要
C．D公司在A公司内持有股份，但D公司的持股比例为2％
D．A公司的子公司——E公司
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没用重章叠句的复沓结构的作品是（）。
A . 《秦风•蒹葭》
B . 《秦风•无衣》
C . 《鄘风•相鼠》
D . 《大雅•生民》
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在急性肝炎时，哪一项LDH同工酶活性增高（）。
A.LDH1
B.LDH2
C.LDH3
D.LDH4
E.LDH5
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The word “project”(Para. 3, Line 4) most probably means _________.
A. a piece of work that needs skill and effort B. to plan C. to show D. to find
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2014年6月18日上午7时，武汉至黄石城际铁路首趟（）号动车组列车C5501次从武汉站驶出，开往大冶北站；7时13分，从武汉站开往黄冈东站的C5601次列车平稳启动，革命老区黄冈市首次迎来疾驰如风的动车组。这开创了国内同一地域首次同时开通两条城际铁路的先河。
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造成轻瓦斯保护动作的原因有（）
A.变压器故障产生少量气体
B.因滤油,加油或冷却系统不严密以致空气进入变压器
C.因温度下降或漏油致使油面低于气体继电器轻瓦斯浮简以下
D.气体继电器或二次回路故障
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