【单选题】Sometimes it is not so easy to tell the right the wrong.
【简答题】取葡萄糖2g,加水溶解后,依法检查铁盐,如显色与标准溶液3mL(10ug Fe/mL)比较,不得更深,求铁盐限量。(要求拍照上传计算过程)
【单选题】It is not so easy to take the money out of a piggy bank as to put the money in.
【单选题】It can be easy to _______ such bad habits as smoking and heavy drinking, but it is not so easy to quit.
【单选题】取葡萄糖2g,加水溶解后,依法检查铁盐,如显色与标准溶液3ml(10μFe/ml)比较,不得更深,铁盐限量为 ( )
【单选题】It is not so easy to make clear the shifting ______ within a large family.
【单选题】利用光栅的( )作用,可以进行色散分光 。
【简答题】It is not so easy to make a nutritious breakfast.