单项选择题
A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.When twinned，the crane rotation on the foundation assembly is unlimited
D.All of the above
单项选择题 Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.
单项选择题 Which method should be used to warm up the pump turbines prior to discharge（）.
单项选择题 Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.