更多“安全阀是通过阀片的破裂来泄放介质，以降低容器内的压力，防止爆”相关的问题
后缘襟翼有几个？（）
A、2个
B、4个
C、6个
D、8个
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组合夹具是由一套预先设计制造好的，具有各种不同形状和规格，并有较高的互换性、耐磨性和精度的（）组装而成的。
A.标准零件 B.标准工具 C.标准模型 D.非标工具
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规范性文件系统化的方式中，既可以是官方的，也可以是非官方的方式是( )。
A．法规汇编
B．法典编纂
C．法规清理
D．法规修改
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一般要求装载机运行800小时后，就要更换机油。
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对调整门的校验工作，应（）热工人员进行，要确认汽源（）正常，（）指示与（）方向应正确。
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在下面列出的数据模型中，哪一个是概念数据模型？ ()
A.关系模型
B.层次模型
C.网状模型
D.实体、联系模型
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Questions 16-20 are based on the following passage: Beijing’s top hotels are fielding scores of calls from foreigners and Chinese people eager to book rooms during the 2008 Olympic Games in the Chinese capital. The luxurious and recently-renovated Beijing Hotel said it had received nearly 100 telephone inquiries from people wanting to book rooms during the Games since Beijing won its bid to host the event. "Out of these people, foreigners make up 30 to 40 per cent, including people calling from the United States and Europe," a hotel sales manager surnamed Song said. Minutes before the decision by the International Olympic Committee (IOC) was announced in Moscow, the hotel had already received 50 to 60 such phone calls from would-be game-goers gambling on the result. Domestic callers have mainly come from the southern provinces of Guangdong and Fujian. Song said the hotel was not taking reservations, but only noting down names of callers, because seven years was too far in advance. The hotel also may be used by the IOC and would then need to set aside rooms for IOC members, he said. Beijing will have more than 800 hotels with star ratings before the Olympic Games in 2008. The city currently has 20 five-star hotels, 34 four-star hotels and 338 other hotels with lower ratings. About 70 hotels will be designated to accommodate athletes and Olympic officials during the Games.
A．The 2008 Olympic Games will be hold there.B．More foreigners want to come to China.C．People from the United States and Europe are eager to visit China.D．Those hotels can offer good servic
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下列病毒中，基因组可直接作为mRNA的3种病毒是（）
A.脊髓灰质炎病毒、柯萨奇病毒、流感病毒
B.脊髓灰质炎病毒、AIDS病毒、麻疹病毒
C.脊髓灰质炎病毒、甲型肝炎病毒、新型肠道病毒
D.脊髓灰质炎病毒、乙型肝炎病毒、轮状病毒
E.脊髓灰质炎病毒、麻疹病毒、甲型肝炎病毒
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某基金第一年的收益率为10%，第二年的收益率为15%，其几何平均收益率为（）。
A．12.5%
B．10.5%
C．15.5%
D．13.5%
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竹子是□□的，然而，竹子和人们的生活息息相关。竹子全身是宝：竹竿既是建筑的材料，又是造纸的原料；竹皮可以编织竹器；竹沥可供药用；竹笋味道鲜美，助消化，防便秘。翠竹真不愧是“绿色的宝矿”。竹子是□□的，...文中把竹笋比做（），目的是为了突出竹笋（）。
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移民环境容量分析的主要依据是（）。
A . 环境保护目标
B . 移民安置规划
C . 区域发展规划
D . 工程分析
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从事易燃易爆作业的人员应穿（）工作服，以防静电危害。
A.合成纤维
B.防油污
C.含金属纤维的棉布
D.人造棉
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呼叫中心中的计算机电话集成技术主要提供的功能包括（）
A、话务控制
B、媒介处理
C、检索
D、呼叫分配
E、语音应答
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参考答案
十点题库官方参考答案
（由十点题库聘请的专业题库老师提供的解答）
