Scientists are convinced ___ the positive effect of laughter ___ physical and mental health.
#28425
A
of; at
B
by; in
C
of; on
D
on; at
推荐题目
_____ your help, we _____ complete the work in time.
#28960
A
Thanks to; were able to
B
Thanks to; could
C
As; would
D
Because; had to
Sichuan is located ________ the west of China while Japan lies______ the east of China.
#26388
A
to ; to
B
in; in
C
in; to
D
to; in
The boy stood his head down, listening to his mother scolding him for breaking the windows.
#26997
A
for
B
of
C
with
D
around
The Boston Marathon bombings killed 3 people, including a Chinese citizen ________ Shenyang.
#25279
A
in
B
from
C
across
D
to