需要设置环状消防给水管网的建筑，应复核管网的布置是否符合要求。（）
参考答案：对
你能找出下列句子中的错误吗？选出来并改一改。
( ) 1. What did you do on you holiday? _______________
A B C
( ) 2. Wu Yifan is busy last weekend. _______________
( ) 3. Did you learned English on your holiday? _______________
( ) 4. What did you usually do on the weekend? _______________
( ) 5. We went with plane on our holiday. _______________
钓鱼岛是中国的领土，富藏石油，据1982年探测，估计石油含量约在747亿桶以上，747亿桶用科学记数法表示为______桶．
