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【单选题】
使用光栅时,考虑到(),最好将尺体安装在机床的运动部件上,而读数头则安装在机床的固定部件上
A.
读数精度
B.
安装方便
C.
节省资金
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举一反三
【单选题】As far as many parents are concerned, what a child should do,________, is to do well in his studies. [     ]
A.
in all
B.
above all
C.
after all
D.
at all
【简答题】阅读理解。 What do you do to get pocket money from your parents? In Western countries, many children do housework to get pocket money. They usually start to do this at 10 years old. School students have to...
【单选题】I _____ the teacher carefully, but I can't anything. [     ]
A.
hear; listen
B.
listen to; hear
C.
hear to; hear
D.
listen; hear
【简答题】What do you usually do to get pocket money from your parents? In western countries, many children do chores to get pocket money. They usually start to do this at 10 years old. School students have to ...
【单选题】世界上最早的教育专著是______。
A.
《大学》
B.
《论演说家的教育》
C.
《学记》
D.
《理想国》
【单选题】What do many students in school have to do in order to make ends meet?
A.
Get a scholarship.
B.
Get a loan.
C.
Find a job.
D.
Get money from their parents.
【单选题】I , but I nothing. [     ]
A.
hear; listen
B.
heard; listened
C.
listen to; hear
D.
listened; heard
【单选题】I read it aloud ________ clearly.
A.
so that I can hear you      
B.
in order to be heard  
C.
to hear
【简答题】Many parents find that their children act very mean to their friends.They wonder what they can do about this behavior without squashing their spirit.Here is what parenting experts explain and suggest:...
【单选题】低坡式混合成本又称( )。
A.
半变动成本
B.
半固定成本
C.
延期变动成本
D.
曲线式混合成本
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