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【单选题】
接触器的电气文字符号是( )。
A.
KM
B.
KS
C.
KT
D.
KA
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参考答案：
举一反三
【单选题】The man went to prison, but the two boys______with a warning.
A.
took off
B.
got off
C.
kept off
D.
set off
查看完整题目与答案
【单选题】从图2—1所示灰铸铁件上的不同部位切取l、2、3号标准拉力试棒。经测试后,三者的抗拉强度应符合( )。
A.
σ3＞σ2＞σl
B.
σ1＞σ2＞σ3
C.
σl＞σ2＜σ3
D.
σl＝σ2＝σ3
查看完整题目与答案
【简答题】说明下列各种牌号钢属于哪一类钢?它们的含碳量和合金元素含量大致是多少?简述它们各自的用途 。 Q345, 20Cr , T12A , 20CrMnTi , 40Cr , 60Si2Mn , 9SiCr , GCr15 , Cr12 , 1Cr13 , ZGMn13-1 , W18Cr4V , Cr12MoV , SM55 , 0Cr13Al 2. 何谓红硬性?碳素工具钢、低合金刀具钢和高速钢三者...
查看完整题目与答案
【单选题】They kept trying, and their efforts finally _______.
A.
make it
B.
paid off
C.
are made it
D.
are paid off
查看完整题目与答案
【简答题】请根据视频内容回答word文档中的问题。 C1 Pass 5 Celebrating St. Lucia's Day.mpg Celebrating St. Lucia's Day.docx
查看完整题目与答案
【单选题】Brian kept __ off the pizzas, so he lost the race. [     ]
A.
to fall
B.
fell
C.
falling
D.
fall
查看完整题目与答案
【判断题】20钢比T12钢的含碳量低。
A.
正确
B.
错误
查看完整题目与答案
【判断题】20钢比T12钢的含碳量低。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He had something urgent to do , so he asked___. A.have a day off B.having a day off C.to have a day off D.to have a day away
A.
have a day off
B.
having a day off
C.
to have a day off
D.
to have a day away
查看完整题目与答案
【单选题】He took off his coat he felt hot.
A.
because
B.
as
C.
if
查看完整题目与答案
相关题目：
【单选题】The man went to prison, but the two boys______with a warning.
A.
took off
B.
got off
C.
kept off
D.
set off
查看完整题目与答案
【单选题】从图2—1所示灰铸铁件上的不同部位切取l、2、3号标准拉力试棒。经测试后,三者的抗拉强度应符合( )。
A.
σ3＞σ2＞σl
B.
σ1＞σ2＞σ3
C.
σl＞σ2＜σ3
D.
σl＝σ2＝σ3
查看完整题目与答案
【简答题】说明下列各种牌号钢属于哪一类钢?它们的含碳量和合金元素含量大致是多少?简述它们各自的用途 。 Q345, 20Cr , T12A , 20CrMnTi , 40Cr , 60Si2Mn , 9SiCr , GCr15 , Cr12 , 1Cr13 , ZGMn13-1 , W18Cr4V , Cr12MoV , SM55 , 0Cr13Al 2. 何谓红硬性?碳素工具钢、低合金刀具钢和高速钢三者...
查看完整题目与答案
【单选题】They kept trying, and their efforts finally _______.
A.
make it
B.
paid off
C.
are made it
D.
are paid off
查看完整题目与答案
【简答题】请根据视频内容回答word文档中的问题。 C1 Pass 5 Celebrating St. Lucia's Day.mpg Celebrating St. Lucia's Day.docx
查看完整题目与答案
【单选题】Brian kept __ off the pizzas, so he lost the race. [     ]
A.
to fall
B.
fell
C.
falling
D.
fall
查看完整题目与答案
【判断题】20钢比T12钢的含碳量低。
A.
正确
B.
错误
查看完整题目与答案
【判断题】20钢比T12钢的含碳量低。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He had something urgent to do , so he asked___. A.have a day off B.having a day off C.to have a day off D.to have a day away
A.
have a day off
B.
having a day off
C.
to have a day off
D.
to have a day away
查看完整题目与答案
【单选题】He took off his coat he felt hot.
A.
because
B.
as
C.
if
查看完整题目与答案
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