单项选择题

What is the main idea of this passage

A．We don't need to worry too much about bacteria everywhere in our life.
B．Antibacterial products for the home are found to be effective.
C．The TV advertisement the writer mentioned is a total failure.
D, The existent bacteria pose a threat only to the very young and very ol

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热门试题

单项选择题

According to the author, one will become obsessive-compulsive ______.

A．if he washes his hands every time he touches a surface
B．if he only washes his hands with soap and water
C．if he could not win over the bacteria in his home
D．if he does not fight against the bacteria at home

单项选择题

According to the author, if you want to keep healthy, you had better ______.

A．make the room dry
B．keep the food in the refrigerator
C．wash your hands as much as possible
D．clean the surfaces with anti-bacterial products