日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

However, at times this balance in nature is ________ resulting in a number of  possibly unforeseen effects.

A. troubled          B. bothered        C mixed     D. disturbed

However, at times this balance in nature is ________ resulting in a number of  possibly unforeseen effects.

A. troubled           B. bothered         C mixed      D. disturbed

However, at times this balance in nature is ________ resulting in a number of  possibly unforeseen effects.
A. troubled          B. bothered        C mixed     D. disturbed

 However, at times this balance in nature is ________ resulting in a number of  possibly unforeseen effects.

A. troubled           B. bothered         C mixed      D. disturbed

However, at times this balance in nature is ________, resulting in a number of possibly unforeseen effects.

[　　]