Có những cặp kim loại sau đây tiếp xúc với nhau, khi xảy ra sự ăn mòn điện hóa thì trong cặp nào sắt không bị ăn mòn :          

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the word that has the underlined part pronounced differently from the rest:  

   treasure                  scream                 sneaky               cheat

• Choose a word that has different stress pattern:

   embrace              affect               brighten               protect

• Choose a word that has different stress pattern:

   memorable              appreciate               embarrassing          apartment

• Choose a word that has different stress pattern:

   floppy             outlook               loyalty              protect

• Choose a word that has different stress pattern:

   enthusiasm                residential                   acquaintance               unselfishness

• Choose a word that has different stress pattern:

   sneaky             brighten                   idol                        protect

• Choose the word that has the underlined part pronounced differently from the rest:

  celebrate            helicopter                memorable               refreshment

• Choose the word that has the underlined part pronounced differently from the rest:

  anniversary              attitude                  affect                clap

• Choose the word that has the underlined part pronounced differently from the rest:

  silver              icing                 idol               time

• Choose the word that has the underlined part pronounced differently from the rest:

  cosy              constancy               hostess              host