题目内容
. However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.
A. lying in B. calling in C. taking in D. resulting in
However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.
However, at times this balance in nature is disturbed by human activities, _______ a number of possibly unforeseen effects.
A.lying in B.calling in C.taking in D.resulting in
However, at times this balance in nature is disturbed, _______ a number of possibly unforeseen effects.
However, at times this balance in nature is disturbed, a number of possibly unforeseen effects.
A. lying in B. calling in C. resulting in D. taking in