填空题 Directions: The following is a list of climate terms. After reading it, you are required to find the items equivalent to (与……等同) those given in Chinese in the table below. Then you should put the corresponding letters in the brackets on the Answer Sheet, numbered 51 through 55.
A —— climate impact assessment C —— ice point
B —— average temperature D —— high latitude
E —— melting of glaciers L —— fresh water
F —— shortening of the snow season M —— sea level
G —— preliminary measures N —— Archimedes's Principle
H —— polar regions O —— thermal expansion
I —— global warming P —— unlikely outcome
J —— greenhouse gas Q —— reduce emissions
K —— ocean circulation
Examples:(N) 阿基米德定律 (O) 热膨胀
51. ( ) 高纬度 ( ) 淡水
52. ( ) 减少排放 ( ) 温室气体
53. ( ) 平均温度 ( ) 极地地区
54. ( ) 冰川融化 ( ) 大洋环流