更多“旅游服务质量保证金存期最短为一年。”相关的问题
浮选机停机后各类管道的闸门关闭不严，会造成重新开机后精煤灰分（）
A.超灰B.低灰C.没有影响D.无法确定
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直径小于（）µm的颗粒物被称为细颗粒物。
A.1.0
B.0.5
C.2.5
D.3.0
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采用哪个函数从文件读取内容，不用打开文件？（）
A.fwrite（）B.file_put_contents（）C.file_get_contents（）D.fread（）
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在边坡上撬石，应站在什么位置上？（）
A、侧方的稳定位置
B、上方
C、下方
D、随意
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胃脘疼痛，如针刺，似刃割，痛有定处，按之痛甚，痛时持久，小食后加剧，入夜尤甚，舌质紫黯或有瘀斑、脉涩。治方应首选（）
A . 血府逐瘀汤
B . 桃红四物汤
C . 桃仁红花煎
D . 芍药甘草汤
E . 失笑散合丹参饮加减
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在一条公路上，A、B两地直线距离600米，甲、乙进行竞走训练，甲每小时行走4千米，乙每小时行走5千米。9点整，两人分别从A、B两地同时出发相向而行，1分钟后两人都掉头行走，又过了3分钟，两人又都掉头行走，依次按照1，3，5，7，······连续奇数的分钟数掉头行走。那么两人首次相遇时是几点几分？（）
A、9：04
B、9：05
C、9：24
D、9：25
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关于冷箱中流体甲烷的节流膨胀，下列说法正确的是（）。
A . A、等焓膨胀，压力降越大，节流后温度越高
B . B、等焓膨胀，压力降越大，节流后温度越低
C . C、等熵膨胀，压力降越大，节流后温度越高
D . D、等熵膨胀，压力降越大，节流后温度越低
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整体安装的活塞式制冷机组、其机身纵、横向水平度允许偏差为（）
A.0.1/1000
B.0.2/1000
C.1/1000
D.2/1000
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"Intelligence" at best is an assumptive construct--the meaning of the word has never been clear. There is (21) agreement on the kinds of behavior (22) by the term than there is on how to interpret or classify them. (23) it is generally agreed that a person of high intelligence is one who can grasp ideas (24) , make distinctions, reason logically, and make use of verbal and mathematical (25) in solving problems. An intelligence test is a (26) measure of a child’s capacity for learning, (27) for learning the kinds of things required in school. It does not measure character, social adjustment, physical (28) , manual skills, or artistic abilities. It was not designed (29) such purposes. To criticize it for such failure is roughly (30) to criticizing a thermometer for not measuring wind velocity. The other thing we have to (31) is that the assessment of the intelligence of any (32) is essentially a comparative affair. We must be sure that the (33) with which we are comparing our subjects provides a" valid" or "fair" comparison. (34) this, any test performed involves at least three factors: the (35) to do one’s best, the knowledge required for under standing (36) you have to do, and the (37) ability to do it. The first two must be equal for all that are being compared, if any comparison (38) intelligence is to be made. No one is (39) interested in the marks a little child gets on his test; instead we are interested in (40) we can conclude from his mark on the test that the child will do better or worse than other children of his age at tasks which we think require "general intelligence".
"Intelligence" at best is an assumptive construct--the meaning of the word has never been clear. There is (21) agreement on the kinds of behavior (22) by the term than there is on how to interpret or classify them. (23) it is generally agreed that a person of high intelligence is one who can grasp ideas (24) , make distinctions, reason logically, and make use of verbal and mathematical (25) in solving problems. An intelligence test is a (26) measure of a child’s capacity for learning, (27) for learning the kinds of things required in school. It does not measure character, social adjustment, physical (28) , manual skills, or artistic abilities. It was not designed (29) such purposes. To criticize it for such failure is roughly (30) to criticizing a thermometer for not measuring wind velocity.
The other thing we have to (31) is that the assessment of the intelligence of any (32) is essentially a comparative affair. We must be sure that the (33) with which we are comparing our subjects provides a" valid" or "fair" comparison. (34) this, any test performed involves at least three factors: the (35) to do one’s best, the knowledge required for under standing (36) you have to do, and the (37) ability to do it. The first two must be equal for all that are being compared, if any comparison (38) intelligence is to be made.
No one is (39) interested in the marks a little child gets on his test; instead we are interested in (40) we can conclude from his mark on the test that the child will do better or worse than other children of his age at tasks which we think require "general intelligence".
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按阀瓣开启最大高度与阀孔直径之比，安全阀可分为()。
A.全启式;
B.微启式;
C.全封闭式;
D.半封闭式
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治疗C群流行性脑脊髓膜炎首选抗生素为A．氯霉素B．青霉素GC．磺胺甲基异唑D．头孢曲松E．利福平
治疗C群流行性脑脊髓膜炎首选抗生素为 A．氯霉素 B．青霉素G C．磺胺甲基异 唑 D．头孢曲松 E．利福平
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撞网回收系统是常用的无人机起飞着陆系统，当该起飞着陆系统出现故障时，我们可能需要维修下面这些装置：拦阻网装置、吸能缓冲装置和（）。
A.末端引导装置
B.遥控装置
C.发射装置
D.飞行控制系统（自驾仪）装置
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某稳定土坡的坡角为30°，坡高3.5m，现拟在坡顶部建一幢办公楼，该办公楼拟采用墙钢筋砼条形基础，上部结构传至基础顶面的竖向力(FK)为300kN/m，基础砌置深度在室外地面以下1.8m，地基土为粉土，其黏粒含量ρc=11.5%，重度γ=20kN/m3，fak=150kPa，场区无地下水，根据以上条件，为确保地基基础的稳定性，若基础底面外缘线距离坡顶的最小水平距离a应满足以下()选项要求最为合适。 (注：为简化计算，基础结构的重度按地基土的重度取值。)
某稳定土坡的坡角为30°，坡高3.5m，现拟在坡顶部建一幢办公楼，该办公楼拟采用墙钢筋砼条形基础，上部结构传至基础顶面的竖向力(FK)为300kN/m，基础砌置深度在室外地面以下1.8m，地基土为粉土，其黏粒含量ρc=11.5%，重度γ=20kN/m3，fak=150kPa，场区无地下水，根据以上条件，为确保地基基础的稳定性，若基础底面外缘线距离坡顶的最小水平距离a应满足以下()选项要求最为合适。
(注：为简化计算，基础结构的重度按地基土的重度取值。)
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在进行支架铸造时，合金刚熔解就飞溅，可能的原因是
A．合金熔解过度
B．用低熔合金的坩埚熔解高熔合金
C．合金熔解方式不对
D．用高熔合金的坩埚熔解低熔合金
E．合金中有杂质
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