问题
选择题
At minus 130 ℃, a living cell can be ________ for a thousand years.[ ]
A. spared
B. protected
C. preserved
D. developed
答案
答案:C
At minus 130 ℃, a living cell can be ________ for a thousand years.[ ]
A. spared
B. protected
C. preserved
D. developed
答案:C