问题 问答题 简答题

混凝土用碎石的强度用什么指标控制?

答案

参考答案:

岩石的抗压强度和压碎指标表示。岩石的抗压强度至少要比混凝土强度高 20%,当混凝土强度大于或等于C60,应进行岩石抗压强度检验,岩石抗压强度首先由生产单位提供,施工中用压碎指标控制。

完形填空

第二节完形填空(共20小题;每小题1分,满分20分)

阅读下面短文,掌握其大意,然后从21 – 40 各题所给的四个选项(A, B, C, 和D)中,选出最佳选项,并在答题纸上将该选项标号涂黑。

Leaning against my parents’ wardrobe in the bedroom, I, six years old then, __21__ to their casual talk about budgets and paychecks. I __22__ that my family was poor.

Their money talk continued, and a thought __23__ me: Dad had to __24__ for me. While the story of my birth ranked as a bedtime favorite, I had never considered hospital bills, the meals I’d eaten, or the __25__ of my clothes.

“Daddy,” I interrupted, “how much did I cost?” “Oh, let me see. About a million dollars.”

A million dollars! Because of me, Dad __26__ two jobs. Because of me, he wore __27__ jeans, drove an old car, and had his shoes __ 28__ over and over again.

I went to the kitchen. From a shelf, I took my granny-shaped __29__, which held every penny I owned – seven dollars. I pulled the bank’s plug out, and __30__ the coins into my hand. I had often __ 31__ with these coins in secret and I felt secure pleasure in just knowing they were there.

Whether the topic had changed when I returned to my parents’ bedroom, I didn’t __32__. Tugging ( 用力拉 ) on Dad’s shirt, I __33__ out my first payment on a million dollars.

“Here,” I said. “Maybe this will __34__ to pay for me.”

“What?” Dad’s confused look __35__ my own. Didn’t he remember what he’d said? Didn’t the sight of me __36__ him of how much I cost?

My tear-filled eyes, which I couldn’t seem to take off the bank, finally made __37__ to him.

Dad knelt down and pulled me __38__ . “You didn’t cost a million dollars, but you’re __39__ a million million dollars. And if that’s what I’d have to pay for you, I would do it.”

Today, I often pull out this memory, think about it and feel the __40__ weight of it in my heart.

21.A.listened    B.watched    C.heard D.joined

22.A.pretended        B.accepted   C.concluded D.confused

23.A.occurred   B.hit     C.came D.left

24.A.apply       B.apologize  C.send  D.pay

25.A.style  B.quality      C.material    D.price

26.A.gave up    B.worked     C.lost   D.offered

27.A.old    B.new C.expensive        D.beautiful

28.A.repaired       B.washed   C.sold      D.bought

29.A.coin      B.bag      C.bank     D.suitcase

30.A.carried     B.sent       C.returned   D.poured

31.A.quarreled        B.played     C.worked  D.laughed

32.A.notice      B.care       C.worry    D.mind

33.A.ran        B.put        C.held      D.set

34.A.get        B.reach       C.come     D.help

35.A.matched   B.surprised   C.increased D.confused

36.A.ask       B.remind   C.warn      D.teach

37.A.sense     B.trouble         C.understanding   D.money

38.A.down       B.up    C.away       D.close

39.A.selling   B.buying         C.worth    D.saving

40.A.heavy    B.light      C.cold D.warm

多项选择题