_________ (42)
A.subject
B.topic
C.content
D.text

The word “isolation” in paragraph 2 is closest in meaning to_____
A.discovery
B.impurity
C.separation
D.conjunction

_________ (41)
A.suggests
B.transmits
C.advises
D.informs

The word “contaminated” in paragraph 3 is closest in meaning to_____
A.cooked
B.ocean
C.salty
D.tainted

The incubation period for this illness is_______
A.3 to 4 hours
B.several months
C.4 to 5 days
D.2 to 3 days

The word “This" in paragraph 3 refers to______
A.symptom
B.contaminated foods
C.diarrhea
D.a person

Which of the following locations would be most likely to have a high concentration of Vibrio parahaemolyticus?
A.The middle of the ocean.
B.Sediment
C.A sea.
D.A bay.

The word “it” in paragraph 2 refers to_______
A.sodium chloride content
B.sea water
C.Vibrio parahaemolyticus
D.water temperature

________(49)
A.ensitive
B.strenuous
C.delicate
D.difficult

________(47)
A.deliver
B.fulfill
C.standby
D.hold