单项选择题

A. Visitors had a 75 to 80 percent chance of seeing a whale.
B. Visitors had a 17 to 18 percent chance of seeing a whale.
C. Visitors had a 100 percent chance of seeing a whale.
D. Visitors had a 17 to 80 percent Chance of seeing a whale.
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单项选择题
A. The woman should take the stereo back for a change.B. The woman should refer to the instruction handbook.C. The man will go to her house to help her.D. The woman should give the man an instruction manual for reference.
A. The woman should take the stereo back for a change.
B. The woman should refer to the instruction handbook.
C. The man will go to her house to help her.
D. The woman should give the man an instruction manual for reference.
单项选择题
A. The atmosphere and ocean have cooled. B. Snow and ice have disappeared.C. The global mean sea level has fallen. D. The concentration of greenhouse gases has decreased.
A. The atmosphere and ocean have cooled.
B. Snow and ice have disappeared.
C. The global mean sea level has fallen.
D. The concentration of greenhouse gases has decreased.
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