Lower the（）to the tug.A、towing lineB、slip lineC、breast lineD、spring line

A、lower⋯that

B、below⋯those

C、under⋯that

D、lower⋯those

Compared to a constant pitch propeller, a controllable pitch propeller

A.more efficiently uses available engine power

B.operates at a lower efficiency at a fixed speed

C.produces the same torque at lower engine power

D.develops its rated power at a lower speed

听力原文：When the Fed wishes to encourage business activity, it may lower the discount rate to boost borrowing.

(5)

A．People are discouraged to do business with a lower discount rate.

B．People are encouraged to borrow more money if the discount rate is lowered.

C．People are encouraged to borrow more money if the discount rate is raised.

D．People are discouraged to borrow less money with a lower discount rate.

Pedestal cranes have limit switches to restrict movement of which function（s）________．

A.Hoist upper & lower limits

B.Luff travel limits

C.Rider block hoist upper & lower limits

D.All of the above

Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel?

A.Lower the stern ramp，raise/open the stern door，turn on ventilation for cargo holds

B.Turn on ventilation for cargo holds，raise/open the stern door，lower the stern ramp

C.Turn on ventilation for cargo holds，lower the stern ramp，raise/open the stern door

D.Raise/open the stern door，lower the stern ramp，turn on ventilation for cargo holds

Lower down and secure all derricks.

A.High-speed parallel connections

B.Lower voltage

C.Lower volume stripes

D.Higher bandwidth

As water gets colder, its temperature drops lower and lower, until it begins to freeze.

When considering a vessel&39;s stability，which spaces in a general cargo vessel are the best locations for the carriage of bulk grain?

A.Deep tanks

B.Lower holds

C.Lower holds at the ends of the vessel

D.Tween-decks