A:is; i
B:are; are
C:is; are
D:are; i
What does Alice want to eat?
A种饮料比B种饮料单价少1元,小峰买了2瓶A种饮料和3瓶B种饮料,一共花了13元,如果设B种饮料单价为x元/瓶,那么下面所列方程正确的是( )
如图,△ABC中,∠A=40°,点D为延长线上一点,且∠CBD=120°,则∠C=( )