问题
单项选择题
我国柴油机润滑油的牌号指的是：该油品在温度为()时的()。
A.50℃/运动粘度厘斯数
B.100℃/运动粘度厘斯数
C.50℃/动力粘度
D.100℃/动力粘度
答案
参考答案：B
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我国柴油机润滑油的牌号指的是：该油品在温度为()时的()。
A.50℃/运动粘度厘斯数
B.100℃/运动粘度厘斯数
C.50℃/动力粘度
D.100℃/动力粘度
参考答案：B
I grew up one of ten children on a farm in Wyoming.After my dad’s service in World War Ⅱ，he was ____ again to fight during the Korean War，and when he returned home，he couldn’t drink ____ to numb(麻痹) his terrible memories.He struggled to ____ for his growing family. On our occasional trips to town，I ____ out boxfuls of books from the library.When I opened a book，I could ____ myself in unknown places—where children weren’t hungry and were in ____ of little. When I wasn’t daydreaming，my ____ was the life I shared with my brothers and sisters.At night I hid under the covers ____ to silence the sounds of life in an alcoholic home.Classmates asked ____ we didn’t have electricity or a telephone.I suppose my explanations were ____ more than lies，but the stories I told improved ____ every book I read. Starting at a very young age，my siblings(兄弟姐妹) and I sometimes got jobs to earn money—to put more food on the family table.We ____ newspapers，babysat，and cleaned other people’s houses. Mom grew vegetables，raised chickens，and baked bread，so we seldom went hungry，even when supper was only a pot of beans.____ my real hunger wasn’t for food—it was a hunger for a better life.It was a hunger for knowledge about the world ___ our simple existence.It was a hunger to prove Dad ____ when he told us we would never amount to anything. Hunger motivated my brothers and sisters to achieve much ____ than our parents expected ___ us.We devoured(如饥似渴地吸取) the offerings of the public schools because we realized that ____ would be our steppingstone into a brighter future. Now I’m ____ of the accomplishments of my siblings：an art professor；a wellknown doctor；plus business owners.And me，I’m the keeper of the family stores.I’ll never know if we would have so many accumulated successes if we had not known ____ as children.But this I do know：I believe it can be a good thing.
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