题型:填空题 I don't think difficult for a Chinese student to master a foreign language within five yearsA.that B.it C.too D.very 查看答案
题型:填空题 下述中有关表面温度正确的是()。A.货物表面温度低于舱内空气温度会出汗B.船体表面温度高于舱内空气露点会出汗C.舱内空气温度低于船体表面温度会出汗D.舱内空气露点高于船体表面温度会出汗 查看答案