Researchers have been researching into the( )of sleeping pills on human brain.
A.正确答案Baffect
B.effect
C.impact
D.influence
Researchers have been researching into the( )of sleeping pills on human brain.
Researchers have been researching into the( )of sleeping pills on human brain.
A.正确答案Baffect
B.effect
C.impact
D.influence