I was greatly ________ at how he worked out the ________ problem in a creative way.
A:amazed; puzzled
B:amazing; puzzling
C:amazed; puzzling
D:amazing; puzzled
He lost his ____(胃口,食欲) because of his sorrow.
杭州某零件厂刚接到要铸造5000件铁质工件的订单,下面给出了这种工件的三视图.已知铸造这批工件的原料是生铁,待工件铸成后还要在表面涂一层防锈漆,那么完成这批工件需要原料生铁多少吨?涂完这批工件要消耗千克防锈漆?(铁的密度为7.8g/cm3,1千克防锈漆可以涂4m2的铁器面,三视图单位为cm)