The department concerned has issued a public letter to collect opinions among Internet users about the feasibility of the Internet real-name system. Write a reply letter to 1)explain the benefit(s)of adopting this system, and 2)express your concern about the consequent possible risk(s). You should write about 100 words on ANSWER SHEET 2. Do not sign your own name at the end of the letter. Use "Li Ming" instead. Do not write the address.

A. It"s caused by the confusion of the brain.
B. It usually happens in some experiments.
C. It can be verified by the thermal grill illusion.
D. It can be felt when you touch cool objects.

A. Competitor.
B. Compete.
C. Match.
D. Compare.

A. The census helps us know more about the types and numbers of marine microbes.
B. Many scientists will participate in the census which will start on Oct. 4.
C. Nearly all new forms of marine life have been found in the census.
D. More marine life can be found if the census conducts more researches.

A. The deep sea area is full of different types of newly found creatures.
B. Findings of new creatures enable us to have a fresh look at the deep sea area.
C. The deep sea area has long been regarded as an area without life.
D. There is no difference between the deep sea area and tropical forests.