【多选题】The UV absorption properties of protein are due to the presence of
【单选题】土壤中水分质量占烘干土质量的比值称为()
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
【判断题】土壤中水分质量占烘干土质量的比值称为土壤容积水量
【简答题】Only when each ____step has been checked by other mathematicians will the proof be accepted.
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
【单选题】土壤水分质量占烘干土质量的比值为 ______, 常用百分数来表示。
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted .
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted.