lower cost
higher chirp
easier to manufacture
higher dispersion tolerance
higher optical signal-to-noise ratio
第1题：
What is NOT an advantage of the rhumb line track over a great circle track?
A.Easily plotted on a Mercator chart
B.Negligible increase in distance on east-west courses near the equator
C.Does not require constant course changes
D.Plots as a straight line on Lambert conformal charts
第2题：
Centrifugal pumps have what advantage（s）over reciprocating pumps ________．
A.They are less expensive
B.They are smaller for equivalent pumping ability
C.They pump more cargo in less time
D.All of the above
第3题：
A. lower cost
B. higher chirp
C. easier to manufacture
D. higher dispersion tolerance
E. higher optical signal-to-noise ratio
第4题：
A further advantage of TT over MT is that there is no danger of instructions being delayed or lost in the post.
第5题：
第6题：
What is/are the advantage（s）of cranes over conventional cargo booms ________．
A.Cranes are able to pick up and drop loads over a greater spotting area
B.Increased safety because the deck is clear of running and standing rigging
C.Simplicity of operation of the crane by its operator
D.All of the above
第7题：
What is an advantage of a gate valve over a butterfly valve ________．
A.Less frequent maintenance
B.Faster operation
C.Cheaper
D.More compact
第8题：
Based on the laser operation treatment of three patients。what can we infer from the passage?
A．Laser light treatment is safe and effective．
B．Laser light treatment is dangerous and ineffective
C．Laser light treatment still requires much more studies．
D．Government should encourage doctors to do research of laser light treatment on the human body．
第9题：
A further advantage of TT over MT is that there is no danger of instructions being delayed or lost in the post.
A对
B错
第10题：
what is the advantage of policing？