【简答题】A.He should consume less salt. B.He should eat less fatty foods. C.He should add more protein products to his diet. D.He should consult to doctors more frequently.
【简答题】合金结构钢按照用途及热处理特点不同可以分为 、 、 、 、 。
【单选题】聚合物的单晶通常是在( )条件下得到的。
【多选题】现代旅游经济发展的特点主要体现在旅游经济活动的( )
【简答题】合金钢按照用途可以分为________、________和________。
【简答题】A.He should consume less salt. B.He should eat less fatty foods. C.He should add more protein products to his diet. D.He should reduce the consumption of sugar.
【简答题】A.He should consume less salt. B.He should eat less fatty food. C.He should add more protein products to his diet. D.He should take in more staple food.
【多选题】现代旅游经济在国民经济中的地位如何,主要取决于( )