问题
选择题
However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.
A．lying in
B．calling in
C．existing in
D．resulting in
答案
答案：D
题目分析：考查非谓语动词和动词短语。句意：然而，这种自然平衡有时会受到干扰，导致大量的无法预见的影响。lie in在于；call in拜访；exist in存在于；result in导致。用现在分词表伴随状况，A、C表示原因，故选D。