问题 问答题 简答题

什么叫车轮踏面擦伤?是什么原因造成的?

答案

参考答案:

由于车轮在轨道上滑行,而把圆锥形踏面磨成一块或数块平面的现象叫踏面擦伤。造成踏面擦伤的原因有车轮材质过软,制动力过大,制动缓解不良,调车时单方面使用铁鞋制动,同一轮对两车轮直径相差过大等。

单项选择题
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My dad was never the kind to offer many words of love or encouragement. But we knew he loved us... he just had his own way of showing it.

When I was a teen, we were seasonal campers at a family campground almost an hour outside the city where we lived. Each family had their own campsite with water and electric, and you basically parked your camper there from May through October. Most "Seasonals" visited them every weekend during those months, with the occasional weeklong stay. There were plenty of other kids who camped seasonally each weekend, and they came to be some of my closest friends. Of course, many of them were boys.

We kids paired up with our little boyfriends or girlfriends, and we'd hold hands as we'd walk around the campground. We'd play ping-pong, have some snacks, and play songs. Most weekends were pretty similar, but the couples would change. You'd see so-and-so with a different so-and-so than they were with the weekend before. You know how it is when you're a teen — a three-week relationship is a really long time.

So, needless to say, my teen years were spent with quite a few different boys. But every single one of them had something in common... they'd all received The Evil Eye.

The Evil Eye was a magical sort of thing. One simple look from my dad, and the boy immediately knew not to mess with me. It was as if he could send his warnings through invisible laser(激光)beams that shot directly from his eyes to the boys' brains.

"You will not put your hands on my daughter... You will not kiss my daughter... You will not even whisper sweet nothings into my daughter's ear."

I remember one night in particular, walking with a boy around the campground after dark. We came from one direction, and my dad from the other. The boy and my dad locked eyes for a brief second, then the boy dropped my hand like a hot potato and turned away, giving me a quick, "See ya later."

Yes, the Evil Eye. Best way ever to keep wandering teen boy hands away from your daughters.  

小题1:The Evil Eye in the passage implies that__________.

A.Dad gets angry easily

B.Dad’s eyes are like evil’s

C.Dad’s eyes are ugly-looking

D.Dad’s eyes are protective to his daughter小题2:The underlined words “mess with” in paragraph 5 most probably means_________.

A.cause trouble

B.make untidy

C.get married to

D.talk to小题3:

A.As teenagers, we went camping every weekend.

B.We made lots of friends during the seasonal camping.

C.We had regular boyfriends or girlfriends and enjoyed ourselves.

D.The boy dropped my hand and turned away because he loved The Evil Eye.小题4:It can be inferred from the passage that the author ___________.

A.is a teenage girl who loves her father

B.is a teenage boy who hates his father

C.is now an adult who has come to understand her father’s love

D.used to be a naughty boy who changed girlfriends now and then