Cranes are able to pick up and drop loads over a greater spotting area
Increased safety because the deck is clear of running and standing rigging
Simplicity of operation of the crane by its operator
All of the above
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：
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set ________．
A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.The cranes are powered by independent internal combustion power units
D.All of the above
第3题：
A、universal
B、indlusive
C、indefinite
D、conventional
答案：D
解析：句意：相较于传统的储蓄电池，细小的原子电池具有明显的优势。本题主要考查的是对于学生的词汇量。universal意为普遍的，全球的；indlusive意为范围广泛的，包含在内的；indefinite意为无限期的，不明确的；conventional意为传统的。因此根据句意，本题应选择A。
第4题：
第5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：
Which statement comparing a shipboard crane to conventional gear is TRUE ________．
A.Cranes are more difficult to secure for sea
B.The spotting area of the conventional gear is larger
C.A crane operator requires more training than the winch operator of a yard and stay rig
D.The yard and stay rig is more flexible in its ability to handle a wider variety of cargoes
第8题：
Paul: Bob, ________________?
Bob: Oh, that's my father! And beside him is my mother.
A、what is the person over there
B、who's talking over there
C、what are they doing
D、which is that
第9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10题：