A) placing B) replacing C) being placed D) being replaced
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18 Most of the world's population may live within 100km of the sea in 2025.
A Right B Wrong C Not mentioned
The expression \"tipple effect\" (Line 6, Para. 1 ) most probably means__________
A. chain reaction
B. cumulative effect
C. immediate response
D. long-lasting impact
17 Most developed countries will face water shortages in 20 years.
A Right B Wrong C Not mentioned
[A] habit
[B] culture
[C] language
[D] enjoyment