Women are playing a much more important part in society today.  Now women are working ________teachers, scientists and even leaders. We have to admit the fact that almost all jobs _______used to be done by men are done perfectly well today by women. Women are no longer  ______ down upon in society. With these_______（改变）in their social role, women’s position in the family has been _______（改善）as well. It is hard to find the wife is busy while the husband is sitting in an armchair, w _______TV. In spite of all these changes, a great n _______ of men still guard their rights. They t _______ of women as incapable creatures. Sometimes few women are allowed to a______important meetings. This is the problem we should try to _______ （解决）now.   

对于绝大多数试剂盒中的酶结合物溶液，一般于暗处2-8摄氏度保存.若长期保存，应置于度保存（）。

A、-16到21

B、-16到-21

C、-16到-29

D、-15到-20