The pumps press oil into the cross-head bearing gap when the load on the shell is at its lowest What is the meaning of “its” in the sentence above?（）<br>A:the cross-head<br>B:the pumps<br>C:the shell<br>D:the load

The pumps press oil into the cross-head bearing gap when the load on the shell is at its lowest What is the meaning of “its” in the sentence above?（）
A:the cross-head
B:the pumps
C:the shell
D:the load

出自：海船船员证

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