The _____ lady likes living _____.[ ]
A. 不填, alone
B. alone; lonely
C. long; lonely
A
— You ____ very happy. Why?
— Because we are going to spend the evening at Lily's house. [ ]
A. taste
B. sound
C. look
D. smell
两种金属A与B组成原电池时,A是正极。下列有关推断正确的是( )
A.A的金属性强于B
B.电子不断由A电极经外电路流向B电极
C.A电极上发生的电极发应是还原反应
D.A的金属活动性一定排在氢前面