![The moon－landing is mentioned in the first paragraph to illustrate_____. [A]techno](http://www.mshxw.com/aiimages/29/23053.png "The moon－landing is mentioned in the first paragraph to illustrate_____. [A]techno")
Themoon-landingismentionedinthefirstparagraphtoillustr ate_____.
[A]technologycannotsolveallofourhumanproblems
[B]progressinvaccineresearchforinfluenzahaslaggedbehind
[C]greatachievementshavebeenmadebymeninexploringtheunknown
[D]thedevelopmentofvaccineproductionmethodscannotbestopped
正确答案：B
