在一个标准大气压下,氧气在-183°时会变为()液体。A.无色 B.天蓝色 C.淡蓝

题型:单项选择题

问题:

在一个标准大气压下,氧气在-183°时会变为()液体。

A.无色

B.天蓝色

C.淡蓝色

D.白色

考点:石油钻井工考试高级石油钻井工高级石油钻井工题库
题型:单项选择题

_______ round the city, we were impressed by the city’s new look.

A.Taken

B.Taking

C.To be taken

D.Being taken

题型:单项选择题

某企业2007年6月20日自行建造的一条生产线投入使用,该生产线建造成本为640万元,预计使用年限为5年,预计净残值为40万元,采用年数总和法计提折旧,2007年12月31日该生产线的可收回金额为500万元,2007年 12月31日考虑减值准备后的该生产线的账面价值为( )万元。

A.40

B.220

C.500

D.620

题型:单项选择题

试述在设计措施上如何减少焊接残余应力和变形。

题型:单项选择题
One day, when I was in high school, I saw a kid named Kyle from my class walking home from school with all his books, I thought to myself, “__26___ would anyone bring home all his books for the weekend? He must really be    27___.”As I was walking, I saw several kids running toward him. They ran at him,   28  all his books out of his arms and he fell down in the dirt, His glasses went   29   and landed in the grass.
My   30   went out to him. So, I ran over to him.  31  I handed him his glasses, he looked at me and said, “Hey, thanks!”
I helped him pick up his books, and asked him where he lived. As it   32    , he lived near me. We talked all the way home. Over the next four years, Kyle and I became best friends.
Kyle was the   33 __student of our class, one of those guys that really found  themselves during high school. Therefore he had the   34  to prepare a  35  speech. On the graduation day, I could see that he was  36   .So, I patted him on the back and said, “Hey, big guy, you’ll be   37  !” He looked at me and smiled.
He cleared his throat, and began. “Graduation is a time to   38   those who helped you make it through those   39    years. Your parents, your teachers… but mostly your friends, I am here to tell all of you that being a friend to someone is the best  40    you can give him.”
I just looked at my friend with   41    as he told the story of the first day we met. He had planned to  42    himself over the weekend and was carrying his books home. “Thankfully, nothing happened. My friend   43     me from doing the unspeakable.”
Not until that moment did I realize that you should never underestimate(低估) the  44    of your actions. With one small gesture you can   45   a person’s life. For better or for worse.
小题1:
A.HowB.WhenC.WhyD.Where
小题2:
A.stupidB.cleverC.wonderfulD.anxious
小题3:
A.throwingB.knockingC.takingD.snatching
小题4:
A.lostB.sendingC.brokenD.flying
小题5:
A.heartB.headC.handsD.thought
小题6:
A.WhileB.AsC.BecauseD.Once
小题7:
A.passed byB.came upC.went onD.turned out
小题8:
A.topB.hardestC.favoriteD.luckiest
小题9:
A.prideB.honorC.pleasureD.chance
小题10:
A.classB.schoolC.graduationD.college
小题11:
A.excitedB.nervousC.proudD.crazy
小题12:
A.greatB.famousC.praisedD.honored
小题13:
A.rewardB.rememberC.thankD.congratulate
小题14:
A.happyB.excitingC.oldD.tough
小题15:
A.chanceB.giftC.helpD.favor
小题16:
A.wonderB.anxietyC.disbeliefD.pride
小题17:
A.killB.enjoyC.testD.hurt
小题18:
A.protectedB.freedC.warnedD.saved
小题19:
A.priceB.useC.powerD.meaning
小题20:
A.destroyB.changeC.saveD.understand
题型:单项选择题

什么是等离子弧?有哪些分类?

更多题库