核酸的变性温度为()。
A.105~110℃
B.25~37℃
C.80~100℃
D.42~75℃
E.110~120℃
参考答案:C
This monument image was designed to stir up emotions of awe and respect, but could scarcely evoke feelings of warmth and affection.
A.regulate
B.agitate
C.tangle
D.teem
依法合理使用黄教授的作品,必须( )。
A.经黄教授许可
B.向其支付报酬
C.指明黄教授的作品名称
D.指明黄教授姓名