在330kV线路上进行地电位带电作业时,人身与带电体之间的安全距离不得小于()m。

题型:单项选择题

问题:

在330kV线路上进行地电位带电作业时,人身与带电体之间的安全距离不得小于()m。

A.2.0;

B.2.2;

C.3.0;

D.3.6。

考点:线路运行与检修专业考试高压线路带电检修工(中级)高压线路带电检修工(中级)题库
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(本小题满分12分)已知点P(6,4)与定直线l1:y=4x,直线l2过点P与直线l1相交于第一象限内的点Q,且与x轴的正半轴交于点M,求使△OMQ面积最小的直线l2的方程.

题型:单项选择题
It was a bright spring afternoon when Freda told me she wouldn’t need me any more. I had just finished my four-hour work - 36  up and down the stairs of her three-storey home, cleaning the floor and washing the dished. She was  37 jeans and a sweater. Sitting at the table I had just   38 a pile of papers spread around her. Her husband’s 39   was going to be reduced by thirty percent. And they were trying to live as if it had 40  happened. I felt sorry for her, but I also felt a sense of   41 .
I had been cleaning Freda’s house for five years and had   42  an unexpected relationship with the family. It was not just   43  I had become an expert at scraping(刮掉)dirt stuck to their wooden floor.   44  that I had learned exactly how to place toys on the girls’ beds. It was   45  than that, for I felt I had become a part of their    46 .
Freda stayed at home with the kids,   47 I would often see her in the morning 48
them to school. And I’d be there when they   49  home at lunch for sandwiches and piano practice. I had   50  them grow up. Now I was fired, but the   51 thing was that I still wanted to keep scraping away the dirt and dust for the family.   
I left Freda’s  52  relationship with my clients(主顾). Who am I  53 them? As a matter of fact. I’m   54  an employee - the lowest kind of employee. But I’m also a trusted  55  of the family. I can’t help worrying about what happens around me.
小题1:
A.movingB.comingC.jumpingD.stepping
小题2:
A.hangingB.makingC.changingD.wearing
小题3:
A.washed B.cleanedC.sweptD.brushed
小题4:
A.dutyB.payC.workD.money
小题5:
A.neverB.seldomC.alreadyD.yet
小题6:
A.lossB.surprise C.fearD.regret
小题7:
A.startedB.improvedC.developedD.broken
小题8:
A.why B.whatC.thatD.which
小题9:
A.butB.andC.orD.for
小题10:
A.lessB.moreC.leastD.most
小题11:
A.storyB.lifeC.activityD.experience
小题12:
A.soB.asC.sinceD.however
小题13:
A.takingB.bringingC.meetingD.calling
小题14:
A.leftB.marchedC.went D.returned
小题15:
A.foundB.noticedC.watchedD.realized
小题16:
A.possibleB.greatC.properD.strange
小题17:
A.meaning B.resultC.natureD.importance
小题18:
A.forB.toC.withD.at
小题19:
A.merelyB.certainlyC.probablyD.hardly
小题20:
A.memberB.personC.relativeD.companion
题型:单项选择题

在蒸汽供应系统中,制气系统主体工艺设备是( )。

A.双筒式间歇循环催化蓄热裂解制气炉,一般为顺流武装置
B.双筒式间歇循环催化蓄热裂解制气炉,一般为逆流武装置
C.单筒式直接循环催化蓄热裂解制气炉,一般为逆流式装置
D.单筒式直接循环催化蓄热裂解制气炉,一般为顺流式装置

题型:单项选择题

著名的搜索引擎Google属于()类搜索引擎。

A.全文索引

B.目录索引

C.元搜索引擎

D.其他选项都不对

题型:单项选择题

正常法则的飞行方式中,侧杆控制升降舵和THS,以()

A、保持与侧杆偏转量成比例的升降舵和THS偏转量,与速度无关

B、保持与侧杆偏转量成比例的载荷因数

C、以上说法都不对

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