Readers are required to________the rules of the library and mind their manners.
#13106
A
review
B
confirm
C
observe
D
Manage
推荐题目
The doctor was busy writing an essay in ________ with his recent research.
#11760
A
touch
B
connection
C
devotion
D
comparison
Statistics show that men have ___ as women do for every mile they drive. 
#13236
A
serious accidents as twice many
B
twice as many serious accidents
C
twice serious accidents as many
D
serious accidents as many twice