捣固车在圬工桥面作业时，必须事先拆除护轨，测定轨枕底下道砟厚

搜题请搜索小程序“爱下问搜题”

问题单项选择题

捣固车在圬工桥面作业时，必须事先拆除护轨，测定轨枕底下道砟厚度，如厚度不足（）时，严禁进行捣固。

A.150mm

B.200mm

C.250mm

D.300mm

答案

参考答案：A

改错题

My favourite sport is football. I was a member of 76. ________

our school football team. We practise for three times 77. ________

every week and often watch football match on TV 78. ________

together. Play football not only makes us grow up 79. ________

tall and strong but also give us a sense of fair play 80. ________

and team spirit. We must keep in mind that we play 81. ________

for the team instead ourselves. Also, the sport teaches 82. ________

us the important of obedience. Each player must 83. ________

obey captain, who is the leader of the team. 84. ________

And they must not break the rules too often if we 85. ________

want to win the game.

判断题

中 * * 党内产生“左倾”、“右倾”机会主义错误的主要思想根源是修正主义思想。( )