At times the balance in nature is_______
题型:选择题
问题:
At times the balance in nature is________, resulting in a number of possibly unforeseen effects. [ ]
A. confused
B. puzzled
C. disturbed
D. troubled
At times the balance in nature is________, resulting in a number of possibly unforeseen effects. [ ]
A. confused
B. puzzled
C. disturbed
D. troubled