问题
问答题 简答题
拌合物的稠度以坍落度或维勃稠度表示
答案
参考答案：
坍落度适用于塑性和流动性混凝土拌合物，维勃稠度适用于干硬性混凝土拌合物
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拌合物的稠度以坍落度或维勃稠度表示
参考答案：
坍落度适用于塑性和流动性混凝土拌合物，维勃稠度适用于干硬性混凝土拌合物
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| Most adults(成年人) once studied at school,had classes and did their homework every day.The same 1 is going on at school now. 2 it seems that doing weekend homework is 3 problem for the modern students. All the student should agree that weekend homework should be abolished (取消).It’s 4 for them studying at school five days a week.With homework to do on Saturday and Sunday,when can they find 5 to help around the house,go and see a game,or just have 6 at home? Because of these other activities(活动)，the homework can’t be finished until 7 so their homework is usually done in such a hurry that on Monday teachers are 8 and often threaten (威胁)to fail whole class of students because they know nothing about the 9 .If there were no weekend homework for the students to do ,they would be happy to go to school on Monday 10 having a good rest and to learn what the teachers teach. | |||
| ( )1. A. thing ( )2. A. Also ( )3. A. no ( )4. A. not enough ( )5. A. friends ( )6. A. a rest ( )7. A. Monday afternoon ( )8. A. pleased ( )9. A. lessons ( )10. A. until | B. school B. But B. another B. enough B. time B. an exam B. Saturday afternoon B. sorry B. games B. when | C. class C. Still C. one C. no good C. places C. a lesson C. Friday night C. unhappy C. interests C. before | D. homework D. Though D. other D. no use D. money D. a picnic D. Sunday night D. not worried D. activities D. after |