GRE Text Completion: JiJing 1373-GRE填空机经1373题 - T2OII28N7SB0MR_MA

Although men still dominate the ranks of full professors in the field of astronomy, the increasing numbers of younger women in the field could ____________ a change in its gender mix. A. require B. alleviate C. block D. presage E. portend F. hinder