29.Which of the following statements is TRUE according to the passage?
A. Oceanic salinity has great effect on sea life.
B. Many factors combine to cause changes in oceanic salinity.
C. The movement of the water is related to the amount of salt.
D. The temperature of the water has much to do with the oceanic salinity.
30.The purpose of mentioning the Weddell Sea is
A. to give an example of cold-water salinity
B. to point out the location of deep waters
C. to make a comparison between hot-water salinity and cold-water salinity
D. to show that the water in the Weddell Sea varies in salinity from place to place
答案:
26. B 27. C 28. C 29. D 30. A
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