The clothes made of animal fur look nice my mother. [ ]
A. on
B. in
C. about
D. with
答案:A
某食品包装袋上标有“净含量385克±5克”,这包食品的合格净含量范围是( )克~390克.
为什么说现代自然科学技术的研究,在许多情况下是在人文社会科学的帮助下实现的?