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Passage Two Questions 26 to 30 are based on the following passage. Certain animals and plants develop characteristics(特性)that help them cope with their environment better than others of their kind. This natural biological process is called adaptation(适应性). Among the superior characteristics developed through adaptation are those that may help in getting food or shelter，in providing protection，and in producing and protecting the young. That results in the evolution of more and more organisms that are better fitted to their environments. Each living thing is adapted to its way of life in a general way，but each is adapted especially to its own distinct class. A plant，for example，depends upon its roots to fix itself firmly and to absorb water and inorganic chemicals. It depends upon its green leaves for usi A. appear frightening to the enemies B. look like leaves or branches C. keep motionless when an enemy is coming D. mix with the surroundings for safety [单项选择]气相色谱法（）.
A. FPIA B. GC C. HPCE D. HPLC E. RIA上述缩写表示 [判断题]严禁利用大地做工作零线，不得借用机械本身金属结构做工作零线
[简答题]党性修养（名词解释）
[单选题]生产经营单位的应急预案由生产经营单位主要负责人签署公布后,再进行评审或者论证。
A.A. 对 B.B. 错 [判断题]噪声对人体中枢神经系统的影响是头脑皮层兴奋，抑制平衡失调。
A.正确 B.错误 [单选题]变压器正常运行的声音是( )。
A.断断续续的嗡嗡声 B.连续均匀的嗡嗡声 C.时大时小的嗡嗡声 D.无规律的嗡嗡声 [单项选择]A distance piece, with ground faces, may be interposed between the rod and the bearing housing, its thickness being chosen to ensure the correct （）.
A. expansion ratio B. pressure ratio C. compression ratio D. clearance ratio [多项选择]胆郁痰扰导致失眠，多伴有
A. 不易入睡 B. 惊悸不宁 C. 眩晕胸闷 D. 潮热盗汗 [单选题]单选题：根据《站务管理工作总则》,发生乘客经济赔偿事件时,车站负责上报调度指挥中心、车站所属部门、车站所属中心、（ ）,视情况报110/驻站公安。
A.服务质量办公室 B.安全保卫办公室 C.财务管理办公室 D.行政办公室 [名词解释]建设用地面积
[判断题] 线路上除雪作业必须设置安全防护，现场设防护员或车站设驻站防护员均可。
A.正确 B.错误 [单项选择]封闭式基金的交易遵从“价格优先、时间优先”的原则。价格优先是指（）价格买进申报优先于较低价格买进申报，（）价格卖出申报价格优先于较高卖出申报。
A. 较高，较低 B. 较高，较高 C. 较低，较低 D. 较低，较高 我来回答: 提交
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