How many operators are needed／required on board according to the provisions of the International Convention for the Safety of Life at Sea，1974？ ______.
A.4 operators
B.3 operators
C.2 operators
D.1 operator
第1题：
()?
It includes merchandise, packaging and shipping, duty if required, any taxes and insurance.
A、 Could I get an estimate before placing an order
B、 What does the estimate include
C、 How many would you like to order
第2题：
How many flip-flop circuits are needed to divide by 16? (Intel) 16分频？
第3题：
●How many key comparisons are needed in searching for key value 38? (74) .
(74) A．1
B．4
C．3
D．2
第4题：
How many GMDSS operators are needed/required on board according to the provisions of the International Convention for the Safety of Life at Sea，1974?______．
A.4 operators
B.3 operators
C.2 operators
D.1 operator
第5题：
How many life buoys________on board with self-igniting light?
A.there exist
B.there is
C.there are
D.are there
第6题：
According to SOLAS the breathing air apparatus that must be onboard shall have sufficient capacity for how many minutes of operation?____.
A.20
B.30
C.45
D.60
第7题：
This certificate was issued________the provisions.
A.according to
B.with
C.for
D.below
第8题：
How many key comparisons are needed in searching for key value 38?
A． 1
B．2
C．3
D．4
第9题：
How many adult life jackets are required on board a ship ________．
A.Enough for 100 percent of the persons allowed on board
B.One for each work station and industrial work site
C.Enough for 150 percent of the persons allowed on board
D.Both A & B above
第10题：
According to the ways antonyms differ, how many groups can we classify antonyms into?
Gradable antonymy;Complementary antonymy;Converse antonymy.
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