低压隔爆开关铜触头磨损至原厚度的1/3,超行程压力低于规定值时,应更换触头,动、静触头左右窜动量不超过()mm。
A、0.5
B、1
C、1.5
参考答案:C
让我们一起走进阅读乐园吧!阅读对话,判断正(√)误(×)。
Tom: What's the time, Dad? I'm hungry.
Dad: It's 6: 10. Me, too.
Mom: Time for breakfast.
Tom: What's for breakfast, Mom?
Mom: Rice and noodles. What do you like?
Tom: I like rice. Do you like rice, Dad?
Dad: No, I like noodles.
Mom: Here you are! Noodles and rice.
Dad and Tom: Thank you!
( ) 1. It's time for lunch.
( ) 2. Tom is thirsty.
( ) 3. Dad likes noodles.
( ) 4. Tom likes rice.
女,27岁,人工流产吸宫术后15天,仍有不规则 * * 流血,经抗生素和宫缩剂治疗无效,首先应考虑为()
A.吸宫不全
B.子宫复旧不全
C.月经不调
D.子宫内膜炎
E.宫颈粘连