问题
单项选择题
水轮发电机组检修排尾水时，尾水管内水位越高，尾水闸门漏水侧（）。
A、越大；
B、不变；
C、越少；
D、不漏水
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
水轮发电机组检修排尾水时，尾水管内水位越高，尾水闸门漏水侧（）。
A、越大；
B、不变；
C、越少；
D、不漏水
参考答案：A
| 完形填空。 | ||||
| While Tom and Mary were on holidays at the seaside, they enjoyed __1__ the seagulls. They __2__ a lot about these lovely birds. They will often come close to you on the beach when they are eating something. If you __3__ a piece of bread to them, they will soon catch it. Seagulls swim well, but they don't often dive __4__ fish. They are also good at flying __5__ their large wings. When a seagull is flying, he puts his legs in his body. Tom often watched them __6__ close to the ground because he liked the way they __7__ the air with their wings and brought down their feet before they __8__ the ground. Mary liked to see them sliding (滑行) over the __9__ as they often did, without their __10__ moving. But she said she didn't like the noise they made. | ||||
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