【单选题】指出下列错误的指令( )
B.
syms(‘a','b','positive');
【简答题】过氢化氢酶的K m =2.5×10 -2 mol·L -1 ,求过氧化氢浓度为100mmol·L -1 时,过氧化氢酶被底物饱和的百分数。
【单选题】What is the fee for one year?
【判断题】糖尿病患者只要血糖值不高于3.9mmol/L就属低血糖范畴。
【单选题】What is claimed about Flora Painting Supplies and Services?
A.
It charges a fee for its consultation service.
B.
Its painting service is reasonably priced.
C.
It is new to Riverstone City.
D.
It opens every day of the week.
【单选题】What is the usual shipping and handling fee charged by Super Seafood Suppliers?
【简答题】过氧化氢酶的Km为2.5 × 10 -2 mol/L,当底物过氧化氢的浓度为100m mol/L时,求此浓度下,过氧化氢被底物所饱和的百分数。