What is classified as a combustible liquid ________．
Acetaldehyde
B. Ethyl alcohol
Carbon tetrachloride
D. Tetramethylene glycol
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It is possible，and sometimes necessary，to strengthen the deck of a vessel for carriage of
A. placing bunker on the deck
B. building a stage on which to place the cargo
C. welding steel feet to the deck，on which the cargo is placed
D. erecting vertical pillars under the deck to support the cargo
HIGH WAVES；DENSE STREAKS OF FOAM ALONG THE DIRECTION OF THE WIND；CRESTS OF WAVES BEGIN TO
A. Strong breeze
B. Near gale
C. Gale
D. Strong gale
除县、乡(包括民族乡)、镇人民代表大会外，其他各级人民代表大会均设常务委员会。()
Buckler plates are ______．
A. Triangular-shaped plates connecting the bull chain to the topping lift
B. Metal plates secured over the tops of the hawsepipes
C. Faired shell plates with curvature in two directions
D. Sheets of dunnage used to prevent heavy cargo from buckling the deck plates
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