44 The word 'fraction' in the second paragraph means
A a very small amount.
B a large areA.
C an important system.
D a major source of information.

单项选择题不同时期的土地利用反映了不同时期的人地关系,反映了()不断调整。 A. 环境 B. 土地利用 C. 人地关系 D. 自然界

单项选择题12 Hundreds of buildings werewrecked by the earthquakE.A shaken B damagedC fallen D jumped