在流速相等的情况下，DN200mm管子的流量是DN100mm管子流量的2倍。
参考答案：错
找出下列句子中的错误并改正。
( ) 1. Lucy is comes from America. _______________
A B C D
( ) 2. Do you like reading books? Yes, I like. _______________
( ) 3. He is sitting beside mother now. _______________
( ) 4. Did they watered the flowers on the farm yesterday? _______________
( ) 5. What are seven and six? It's thirteen. _______________
若a=-3，b=25，则a2005+b2005的末位数是多少？
