焊接钢筋冲击试验时，试样应在钢筋横截面中心截取，试样（）。A._爱下问搜题

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问题单项选择题

焊接钢筋冲击试验时，试样应在钢筋横截面中心截取，试样（）。

A.中心与缺口中心的偏差不得大于1mm

B.与钢筋的偏差不得大于1mm

C.缺口与夹具中心的偏差不得大于1mm

D.中心与钢筋中心的偏差不得大于1mm

答案

参考答案：D

完形填空

完形填空。
     This boy’s name is     1    . He     2     twelve. This is    3   school.     4    teacher isMiss Yang.
5    a good teacher.
     Jim has (有)    6      good friend    7      school. His name    8     Zhang Lin. They are   9   Class 2,
Grade 1. They are good students in   10    class.

( )1. A. Jim Green
( )2. A. am
( )3. A. he
( )4. A. He
( )5. A. She's
( )6. A. the
( )7. A. to
( )8. A. are
( )9. A. at
( )10. A. these

B. Green Jim
B. is
B. him
B. Him
B. She
B. /
B. on
B. is
B. on
B. they

C. Jim green
C. are
C. his
C. He's
C. Her
C. a
C. at
C. be
C. to
C. they're

D. Green jim
D. be
D. he's
D. His
D. He
D. an
D. /
D. am
D. in
D. their

单项选择题

辅助逆变器三相输出滤波器由（）组成。

A.三相电感

B.三相电容

C.三相电感和三相电容