The joint of the riser in a marine riser system that compensates for heave，the up-and-down motion of a floater，is the（）.<br>A:flex joint<br>B:slip joint<br>C:heave joint<br>D:riser joint

The joint of the riser in a marine riser system that compensates for heave，the up-and-down motion of a floater，is the（）.
A:flex joint
B:slip joint
C:heave joint
D:riser joint

出自：海船船员证

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