问题
单项选择题
( )在中低水头、大流量水电站中得到广泛应用。
A．混流式水轮机
B．轴流式水轮机
C．斜流式水轮机
D．贯流式水轮机
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
( )在中低水头、大流量水电站中得到广泛应用。
A．混流式水轮机
B．轴流式水轮机
C．斜流式水轮机
D．贯流式水轮机
参考答案：B
| 填空题。 | |
2. The boy was ___ by the failure of the exam. 3. We are ___her promotion to president. 4. We___ be late 5. The doctors tried their best to ____ the drowning boy ___. 6. They succeeded in the end and all their efforts ___. 7. At no time has the country been more prosperous than ___. 8. Keepers in Taiwan said the pandas were ___. 9. Day after day she waited ___ for him to give her a gift. 10. I think by doing so he is trying to ___ terror ___. |