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【单选题】
冲裁多孔冲件时,为了降低冲裁力,应采用 的方法来实现小设备冲裁大冲件A.
阶梯凸模冲裁
B.
斜刃冲裁
C.
加热冲裁
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【单选题】-- How far is it from here to your office?-- About eight ______ walk.
A.
minutes
B.
minute
C.
minutes'
【简答题】市场的基本关系是( )关系 2.市场的基本活动是 ( ) 活动。
【简答题】按一阶系统为例,简述求解具体系统频谱特性的一般步骤,并简要说出一阶系统的特性。
【单选题】The population in the Paris area is around ______.
A.
two million
B.
eight million
C.
six million
D.
eigh million
【单选题】Their university is located on a beautiful lake, ____ of this developing city.
A.
southeast thirty miles
B.
thirty miles southeast
C.
thirty miles to southeast
D.
to thirty miles southeast
【简答题】如果MCS-51单片机外部晶振频率为12MHz,那么它的一个机器周期是______。
【单选题】A new eight-storey building ______ in our city next year. [ ]
A.
was built
B.
will be built
C.
is built
D.
will build
【单选题】Twilight City (暮光之城)is the best movie _____ I _____ in the past eight years. [ ]
A.
that; have seen
B.
that; saw
C.
which; have seen
D.
which; saw
【单选题】某次水平考试成绩出来了,全校有3000多人参加考试,成绩都在同一张工作表中,工作表包含学号、姓名、准考证号、课程名、成绩等,现有一个教学班级90人成绩表,包含学号、姓名、课程名、成绩等数据,成绩数据要来源于水平考试成绩表,在Excel中使用( )函数可以完成这90人的成绩搜索。
A.
IF
B.
SUNIF
C.
VLOOKUP
D.
COUNTIF
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