A:were spent
B:are spent
C:is spent
4+8=____
11-6=____
11-5=____
9+6=____
12-7=____
7+8=____
9+3=____
13-4=____
6+7=____
6+6=____
下面四幅气候类型图,从左到右表示的气候类型依次是( )