问题
单项选择题
中包液面低于（）mm视为低液面。
A、50
B、100
C、200
D、250
答案
参考答案：D
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中包液面低于（）mm视为低液面。
A、50
B、100
C、200
D、250
参考答案：D
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| My 1 home is in the country (乡下). The air there is fresh and it is 2 . My house is very beautiful. 3 at least three floors. There is a river 4 my house and behind 5 is a big garden. I can 6 trees and flowers in it. I like 7 green everywhere and green is my 8 color. I like to work in the 9 and fish in the river. I'd like to invite my friends to my home. Then we can chat and play games. How 10 we are. | ||||
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