并联谐振时，感性无功电流和容性无功电流可能比总电流大许多倍。-我要搜题网

[单选题]在静息时,细胞膜处于外正内负的稳定状态称为( )
A.极化
B.超极化
C.去极化
D.复极化

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[单选题]转K5型下旁承尼龙磨耗板（）或顶面磨耗超限时更换。
A.裂纹
B. 破损
C. 变形
D. 磨耗

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[单选题]一般纳税人选择简易办法计算缴纳增值税后，一定时间内不得变更。该时间为（　）。
A.12个月
B.18个月
C.24个月
D.36个月

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[单选题]以现代网络功能模块划分，整个通信网可以分为三部分：交换网、传输网和（）。
A.接入网
B.校园网
C.互联网
D.物联网

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[单选题] 搭链条时，要用麻绳把新链条(　　)，分别拉到两端的链轮上。
A.一端拴牢
B.两端拴牢
C.一端拴到旧链条上
D.与旧链条连接

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[单选题]A-C-B-002 3 2 3
高速铁路两框构涵相邻边墙之间、桥梁台尾线与相邻框构涵边墙之间的路基过渡长度不应小于( )。
A. 30m
B. 35m
C. 40m
D. 50m

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[单项选择]John Klement is a soybean farmer who harvests 125000 bushels of soybeans annually. Klement’s fixed costs are $ 200000 and his variable costs are $ 5 per bushel. Soybeans are currently priced at $ 5.35 per bushel. Based on his estimates, Klement sees soybean prices being relatively stable for the next two years, then increasing to $7.00 per bushel due to increased demand from Japan. What action should Klement take Klement should:（）
A. shut down for two years and then restart his business.
B. cut his production by 50% for the next two years and then resume full production.
C. continue operating his business as usual.

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[填空题]流动人员(个人存档)办理人事档案转出手续时须携带本人有效证件和拟调入机构出具的调函。( )

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[单选题]接线或拆线作业应（）完成，并恢复该相绝缘后，方可进行下一步的作业。人体不得同时接触两根线头。
A.逐相
B.同时
C.先相线
D.先零线

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[填空题]

Almost daily, the gulf between education and employment widens. Careers officers complain (31) a system that presents them with school-leavers devoid of ideas for employment. Employers deplore the fact (32) teenagers are unable to spell and write and calculate. Graduates discover that a knowledge of Ancient History or Zoology counts for nothing when they are (33) for a job.
With all our magnificent new colleges of further education, the super-polytechnics are (34) up like mushrooms, and with our much-vaunted increase of students in fulltime education, one vital point is being left out of educational thinking. What will it earn Because — sad (35) it may seem to those who believe in its mind-broadening, horizon-widening and stamina-testing qualities — you can not eat education. (36) are 39 universities and colleges offering degree courses in Geography, but I have never (37) any good jobs advertised f

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[判断题]座板式单人吊具可以不适用吊具屋面固定装置。
A.正确
B.错误

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[简答题]偿还银行住房贷款的支取需要职工提供哪些材料？

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[单项选择]夹紧装置不必要满足下列哪一点：（）
A. 良好的自锁性能
B. 不破坏工件的定位
C. 尽量使用新技术
D. 尽量结构简单

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[单项选择]在火车上采样，当煤样量为1000吨时，所采最少子样数目只与（）有关。
A. 煤中硫分含量；
B. 煤的最大粒度；
C. 是否洗选；
D. 煤的品种。

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[判断题] 会议电视业务是通过异地间语音、图像和数据等信息的实时交互传递,创造真实临场感。()
A.正确
B.错误

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[单项选择]The Irish lowland _______.
A. is a rocky area
B. has many high mountains
C. is covered by green forests
D. has different landscapes from place to place

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[单选题]Z PW-2000A型无绝缘轨道电路分路灵敏度为（）Ω。
A.0.06
B.0.15
C.0.5
D.1

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[单项选择]在数控镗床上孔的加工固定循环指令是以一个（）程序段代替通常需要多个加工程序段才能完成的加工孔的过程。
A. M代码
B. H代码
C. D代码
D. G代码

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[判断题]在高速公路上遇到紧急情况时不要轻易急转向避让。

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[单选题]站用直流电源系统精益化评价细则中，要求（）kV及以上变电站应安装应急电源接入箱。
A.35
B.110
C.220
D.330

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[多选题]UR40系列断路器中，其机械间隙‘W1’、‘W2’分别为（）需要更换新触头。
A.W1≤45±1mm
B.W1≤38±1mm
C.W2≤3±0.5mm
D.W2≤8±1mm

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[单选题]单相逆变器的( )号信号线为正常信号，只有当逆变器交流正常输出时，该线输出+110V表示逆变器正常。
A.202
B.204
C.302
D.304