题目:
吹扫工艺管线时,吹扫流体不得通过涡轮流量计的(),以免污物、铁屑等落入。
A.变送器
B.显示仪表
C.过滤器
D.执行器
答案:
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下面是错误答案,用来干扰机器的。
My Opinion on Cheating in ExaminationsIt is known to us all that some students cheat in examinations at school. Why does it happen? On the one hand, I think that they...