The most unhygienic phone had more than ten times the acceptable level of TVC and seven were above the limit. This worst handset also had 39 times the safe level of enterobacteria(肠道菌), a group of bacteria that live in the lower intestines (肠) of humans and animals. It had 170 times the acceptable level of faecal coliforms (大肠杆菌)，which are associated with human waste. Other bacteria were found on the phones but at safe levels.

　　The germs can end up on your hands, which are passed back to your phone. They can be passed back and forth and eventually you could catch something grubby. People need to be mindful of that by observing good hygiene themselves and among others who they pass the phone to when looking at photos, for example.

　　1. According to Paragraph 2, bacteria on mobile phones _______.

　　A. are easy to get rid of

　　B. can’t be avoided

　　C. may cause potential risks

　　D. just do harm to users’ stomachs

　　2. Which of the following statements does Jim Francis agree with?

　　A. It is necessary for people to clean mobile phones in time.

　　B. People should use mobile phones as little as possible.

　　C. People have realized the harm of bacteria on mobile phones.

　　D. All bacteria on mobile phones are harmful to people.

　　3. The underlined word “grubby” in the last paragraph can be replaced by “_____”．

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