单选题With reference to a two ram actuating mechanism, which one of the following statement is false?（）AThe rams work inside cylindersBThe cylinders have glands sealing their open endsCThe rams are connected to a cross-headDThe cross-head is mounted on the rudder stock
单选题
With reference to a two ram actuating mechanism, which one of the following statement is false?（）
A
The rams work inside cylinders
B
The cylinders have glands sealing their open ends
C
The rams are connected to a cross-head
D
The cross-head is mounted on the rudder stock
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