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Reading comprehension -TOEFL- Lesson 113 (Đọc hiểu -TOEFL- Lesson 113)

Reading and answers the question:

   Vibrio parahaemolyticus is a bacteria that has been isolated from
sea water, shell fish, finfish, plankton and salt springs. It has
been a major cause of food poisoning in Japan and the Japanese have
done several studies on it. They have confirmed the presence of V.
5 parahaemolyticus in the north and central Pacific with the highest
abundance in inshore waters, particularly in or near large harbors.

A man named Nishil studied the relationship between the chloride content
of sea water and the seasonal distribution of V. parahaemolyticus
10 and concluded that while the isolation of V. parahaemolyticus was
independent of the sodium chloride content, the distribution of V.
parahaevolyticus in sea water was dependent on the water temperature.
In fact it has been isolated in high frequencies during summer, from
June to September, but was not isolated with the same frequency in
15 winter.

Within four of five days after eating contaminated foods, a person
will begin to experience diarrhea, the most common symptom: this
will very often be accompanied by stomach cramps, nausea, and vomiting.
20 Headache and fever, with or without chills, may also be experienced.
1. Which of the following locations would be most likely to have a high concentration of Vibrio parahaemolyticus?

2. The safest time for eating seafood is probably

3. The most common symptom of V. parahaemolyticus is

4. The incubation period for this illness is

5. Nishil's study showed that

6. The word "cramp" in line 19 means most nearly

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