点P是直线l外一点,A、B、C为直线l上的三点,PA=4cm,PB=5cm,PC

题型:选择题

问题:

点P是直线l外一点,A、B、C为直线l上的三点,PA=4cm,PB=5cm,PC=2cm,则点P到直线l的距离(  )
A.小于2cmB.等于2cmC.不大于2cmD.等于4cm
考点:垂直的判定与性质
题型:选择题
In one way of thinking, failure is part of life. In       way, failure may be a way towards success. The “Spider-story” is often       .Robert Bruce , leader of the Scots in the 13 th century, was hiding in a cave from the English. He watched a spider       a web. The spider tried to reach across a rough        in the rock. He tried six times without success .On the        time he made it and went on to make his web. Bruce is said to have been encouraged by this and to have gone on to       the English . Edison , the inventor of the light bulb, made       models that failed before he found the right way to make one. Once he was asked         he kept on trying to make a new type of battery when he had failed so often, he replied, “Failure? I have         failure. Now I know 50,000 ways it won't        ”.
So what? First,always think about your failure. What caused       ?Were conditions right? Were you in top from yourself? What can you change? So things will go          next time.
Second, is the goal you're trying to reach the right one? Try to do some         about what your real goals may be. Think about this question. “If I do succeed in this, where will it get me?" This may help you prevent failure in things you shouldn't be doing any way.
The third thing to keep in        about failure is that it's a part of life. Learn to “live with yourself" even though you may have       
小题1:
A.otherB.anotherC.firstD.second
小题2:
A.toldB.saidC.talkedD.spoken
小题3:
A.doingB.takingC.makingD.playing
小题4:
A.roomB.houseC.placeD.soil
小题5:
A.tenthB.sixthC.eighthD.seventh
小题6:
A.saveB.helpC.defeatD.kill
小题7:
A.hundredB.hundredsC.hundred ofD.hundreds of
小题8:
A.whyB.whenC.whatD.who
小题9:
A.notB.noC.neverD.nothing
小题10:
A.doB.makeC.tookD.work
小题11:
A.oneB.itC.thatD.this
小题12:
A.highB.largeC.rightD.bright
小题13:
A.thinkingB.shoppingC.readingD.cleaning
小题14:
A.heartB.eyesC.earsD.mind
小题15:
A.failedB.succeededC.finishedD.passed
题型:选择题
已知A、B依次是双曲线E:x2-
y2
3
=1
的左、右焦点,C是双曲线E右支上的一点,则在△ABC中,
sinA-sinB
sinC
=______.
题型:选择题

某分部工程主要有两个施工过程,分3段进行施工,各施工过程的流水节拍分别为:3、3、2和2、3、2天,在施工中两个施工过程之间至少间隔两天。如果组织非节奏节拍流水施工,则流水步距和流水施工工期为( )天。

A.1和11
B.4和11
C.3和12
D.4和13

题型:选择题

关于长时记忆的遗忘,哪一理论认为“先前的知识与当前记忆发生重构,导致记忆的干扰或扭曲”?()

A.痕迹消退说

B.干扰说

C.同化说

D.抑制说

题型:选择题

短期未知决诊,九候曾无髣髴。(短期)(髣髴)

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