D:①④
A:①②
B:①③
C:③④
下图中的数字符号表示的自然灾害的类型是
Nowadays the belief has become general ________ sea food and fruits rich in vitamin C should never be eaten at the same meal.
“如果∠A和∠B的两边分别平行,那么∠A和∠B相等”是( )
①9,16,23,____,37,____,…
②2,8,32,____,____,____,…