However, at times this balance in nature is disturbed, _______ a number of possibly unforeseen effects.
#92867
A
resulting from
B
resulting in
C
having resulted from
D
having resulted in
推荐题目
A new way of teaching _____ in the article can make learning easier.
#88865
A
introduced
B
has introduced
C
was introduced
D
is being introduced
 Tony was very unhappy for _______ to the party.
#98433
A
having not been invited
B
not having invited
C
having not invited
D
not having been invited
Every minute is made good ______ of ______ for the coming national examinations.
#94518
A
used…preparing
B
use…to prepare
C
useful…to prepare
D
use…preparing
The book, ________ for beginners,is popular with students.
#88446
A
designs
B
designing
C
designed
D
to design