We can learn from the fourth paragraph that
A. students are easily attacked by the Norwalk-like virus.
B. Norwalk-like viruses tend to break out in closed crowded place.
C. Norwalk-like viruses might cause flu.
D. Norwalk-like viruses are not widespread.
查看答案
We know from the author's suggestions that
A. we can bargain about the ocean cruises.
B. people with motion sickness should not travel by ships.
C. passengers might be the cause of Norwalk-like viruses.
D. wash hands is a good habit.
By "alcohol is a dietary Jekyll and Hyde", the author means
A. drinking alcohol can be of both advantage and disadvantage.
B. alcohol is necessary for daily diet.
C. Jekyll and Hyde is a brand of alcohol.
D. drinking alcohol can also be very dangerous.
Honda is mentioned in the second paragraph to suggest that
A. Traffic Message Channel is established in Japan.
B. Japan is in the lead in solving traffic problems.
C. Honda demonstrated how VICS can be used.
D. Only few people can afford to enjoy this service.
What can be inferred from the words of Dave Forney？
A. Norwalk-like viruses caused horrors among people.
B. Norwalk-like viruses can be eliminated by CDC.
C. Norwalk-like viruses casually appear on vessels.
D. Norwalk-like viruses co-exist with gastrointestinal illness.
微信支付 
支付宝支付