Scientists are convinced ________ the positive effect of laughter ________ physical and mental health.
#25675
A
of; at
B
on; at
C
by; in
D
of; on
推荐题目
He worked hard, ______ he passed the exam.
#26161
A
in a result
B
as result
C
as a result
D
for a result
He could see the tall chimneys of the factory ______.
#26914
A
from distance
B
in distance
C
in the distance
D
to a distance
--Tom is very stupid. He fails in every exam. --_____, he is more lazy than stupid.        
#27336
A
On the other hand
B
On one condition
C
In my opinion
D
In other words