问题
选择题
We appeal to all countries to _____cooperation on climate change, food security and the prevention of natural disasters.[ ]
A. build up
B. put on
C. show off
D. hold out
答案
答案：A
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We appeal to all countries to _____cooperation on climate change, food security and the prevention of natural disasters.[ ]
A. build up
B. put on
C. show off
D. hold out
答案：A