问题
单项选择题
铺设一条自来水管道，甲队单独铺设需8天可以完成，而乙队每天可铺设50米。如果甲、乙两队同时铺设，4天可以完成全长的2/3，这条管道全长是多少米（）
A．1000米
B．1100米
C．1200米
D．1300米
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
铺设一条自来水管道，甲队单独铺设需8天可以完成，而乙队每天可铺设50米。如果甲、乙两队同时铺设，4天可以完成全长的2/3，这条管道全长是多少米（）
A．1000米
B．1100米
C．1200米
D．1300米
参考答案：C
| 用方框内单词的适当形式填空 | |
2. My brother enjoys _____ in winter. 3. The Greens _____ a big dinner at a restaurant yesterday. 4. Tom was tired and was soon _____. 5. You must _____ after the twins because they are too young. 6. I _____ a beautiful flower in the garden yesterday. 7. I was very _____ because I didn't have breakfast this morning. 8. My father bought a _____ watch for my mother as a birthday present. |