列车施行常用制动时,货物列车运行速度在()以下时,不应缓解列车制动。

题型:填空题

问题:

列车施行常用制动时,货物列车运行速度在()以下时,不应缓解列车制动。

考点:电力机车司机考试电力机车司机专业技能电力机车司机专业技能题库
题型:填空题
Years ago, if a teenager has some problems in her life, she might go home and wrote in her diary. Now, a teenager with the same problems might go onto the Internet and write about ____ in a blog (博客). ___ many ways, a diary and a blog are very similar. So, what makes blogging different ____writing in a traditional diary?           
____ biggest difference is that blogging is ____more public(公共的) than a diary. Usually, a teenager treats her diary like a ____ full of secrets that she does not want to share(分享).
Because blogging is such a public way of ____, it has both good and bad points. The biggest problem with blogging is that ____ can read what you write. ____ you write something bad about a friend, that friend might read your blog and get ____.
Because we do not always ____ things carefully before we write them down, it is easy ____ something that hurts someone’s feelings(感情) in a blog. So we ____ be careful of what we write.
There are also advantages(优点) of blogging, of course. People choose to blog ____ they know that their friends will read what they write.
Blogs are a very good ____ to write about daily life, as long as people are careful about what they write. However I still prefer my old diary.
小题1:
A.inB.itsC.theyD.them
小题2:
A.InB.OnC.At D.Of
小题3:
A.thanB.from C.forD.of
小题4:
A.AB.AnC.theD.不填
小题5:
A.manyB.much C.moreD.most
小题6:
A.book B.notebookC.movie D.file
小题7:
A.writeB.writesC.writingD.to write
小题8:
A.no oneB.nobodyC.someoneD.anyone
小题9:
A.BeforeB.WhileC.If D.Unless
小题10:
A.happyB.unhappyC.luckyD.unlucky
小题11:
A.think upB.think outC.think onD.think about
小题12:
A.to writeB.writingC.wroteD.write
小题13:
A.should B.canC.may D.might
小题14:
A.so B.becauseC.but D.when
小题15:
A.informationB.messageC.way D.road
题型:填空题

关于脊柱的发育,下列哪项是错误的()。

A.出生后第1年脊柱增长快于四肢

B.1岁以后落后于四肢增长

C.新生儿时脊柱轻微前凸

D.6个月后出现胸椎后凸

E.1岁左右出现腰椎前凸

题型:填空题

大于40岁的葡萄胎患者恶变率较年轻患者高()

A.1~3倍

B.4~6倍

C.6~7倍

D.9~10倍

E.10~12倍

题型:填空题

额定流量小于50m³/h的燃气计量表,采用低位安装时,应平正地安装在高度()的砖砌支墩或钢支架上,表后距墙净距不应()。

A、不小于200mm,小于50mm

B、不大于200mm,小于50mm

C、不小于200mm,大于50mm

D、不大于200mm,大于50mm

题型:填空题

资产回报率=()。

A.税后净利÷资产平均余额

B.税后净利÷资产余额

C.利润总额÷资产平均余额

D.利润总额÷资产余额

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