According to the passage, children tend to give more logical, complete and creative answers if adults ________.
A. encourage them to ask questions of their own
B. urge them to think and give immediate answers
C. give them more than three seconds to think after a question
D. give them time to have a fierce discussion
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TECTONICS: GEOLOGY ::
A. diary : biography
B. weather : meteorology
C. encyclopedia : editor
D. poker : gambler
E. journal : correspondent
某住宅楼基础为砼垫层+砖基础，混凝土垫层宽度为1.2m，砖基础底宽为0.9m，土壤为Ⅱ类土，基底标商为-1.2m，自然地坪为0.15m，放坡系数为1:0.5，基础总长度为100m，则该基础人工挖土工程量为( )。
A. 145.80m3
B. 129.6m3
C. 121.5m3
D. 253.12m3
关于聚氯乙烯卷材防水屋面工程量计算方法正确的为( )。
A. 子屋顶找坡按斜面计算
B. 应扣除房上烟囱，屋面小气窗及0.3m2以上的孔洞面积
C. 女儿墙、伸缩缝处弯起部分并入屋面工程量计算
D. 按缝、接头部分并入工程量计算
How did the primitive people pass the accumulated knowledge on to the next generation
A. They wrote the knowledge down on papers.
B. They had the happy "few" enjoy it.
C. They taught it to those who have good memories.
D. They had every one of tile tribe share it and orally passed it on.
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