Nobody knows for sure what effect global warming has ___ our environment in the long term.
#27352
A
of
B
with
C
for
D
on
推荐题目
Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
#26213
A
of；at
B
by；in
C
of；on
D
on；at
Director Zhang Yimou often has his films _______ local contents, which foreigners are not familiar ______.
#26660
A
base on; with
B
to base on; to
C
basing on; to
D
based on; with