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Which statement about tunnel bow thrusters fitted to large vessels is TRUE ________.
A.They are effective on most vessels at speeds up to 10 knots
B.Because of their location,most modern installations have as much power as a tug
C.They are fully effective at all drafts
D.When going astern at slow speed,they provide effective steering control
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更多 “ Which statement about tunnel bow thrusters fitted to large vessels is TRUE ________.A.They are effective on most vessels at speeds up to 10 knotsB.Because of their location,most modern installations have as much power as a tugC.They are fully effective at all draftsD.When going astern at slow speed,they provide effective steering control ” 相关考题
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