2. 外语
  3. Prices reach an equilibrium at the level at which quantity demanded______quantity supplied.

Prices reach an equilibrium at the level at which quantity demanded______quantity supplied.

admin2012-08-05  49
问题 Prices reach an equilibrium at the level at which quantity demanded______quantity supplied.
选项 A、is equal to
B、equal
C、equals to
D、is equal
答案A
解析
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