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[单选题]A mixed-flow pump is的答案
搜答案
A mixed-flow pump is a () pump classified by the working principle.
单选题
2022-01-05 03:12
A、self priming
B、positive displacement
C、reciprocating
D、impeller
查看答案
正确答案
D
试题解析
标签:
船舶电气与船舶安全
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