---The weather repot says the temperature is going to drop sharply. Do remember to put on more clothes.

---         .

A．Made it

B．Got it

C．Understood it

D．Heard it

铁矿石的亲水性依下列哪种顺序递增（）。

A．磁-赤-菱-褐

B．磁-菱-赤-褐

C．赤-磁-菱-褐

D．褐-菱-赤-磁