你可能感興趣的試題

（）is not an advice be observed when samples are taken in tanks containing volatile petroleum products.

A.Filter masks with a combination filter should be brought and used whenever necessary
B.Only explosion-proof equipment（marked EEx）should be used
C.Avoid breathing petroleum gases，especially if they come from sour crude（smell of rotten eggs）
D.so far as possible，take early and substantial action to keep well clear

單項(xiàng)選擇題

The Tally Fees will be settled（）my Shipowner（）the agents．

A.to／for
B.for／to
C.by／through
D.through／for