單項選擇題

"Cast iron has poor corrosion resistance to sea water, especially in the presence of bronzes" Implies（）.

A.east iron is a cheap material
B.cast iron can pollute sea water
C.cast iron has mere corrosive than bronzes to sea water
D.cast iron is more corrosive to sea water when it meets with bronzes

你可能感興趣的試題

單項選擇題

The soda-acid portable extinguishers must be discharged and refilled （）.

A.every six months
B.every year
C.every one and half year
D.every two years

單項選擇題

Class C fires are best extinguished by （）.

A.foam extinguishers
B.water spray equipment
C.dry powder extinguishers
D.soda-acid extinguishers

99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

"Cast iron has poor corrosion resistance to sea water, especially in the presence of bronzes" Implies（）.

你可能感興趣的試題

The soda-acid portable extinguishers must be discharged and refilled （）.

Class C fires are best extinguished by （）.

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精