【单选题】What does the author state is the most important reason men die five years earlier on average than women?
A.
men drink and smoke much more than women
B.
men don’t seek medical care as often as women
C.
men aren’t as cautions as women in face of danger
D.
men are more likely to suffer from fatal diseases
【简答题】Is the following conformation the most stable one? If YES, State your reason. If No, suggest the favored conformation for it and state your reason.
【判断题】在恒温恒压下 , 化学反应 a A + b B = l L + m M 的Δ r G m 表示有限的反应物系处于该反应进度ξ时的反应倾向。
【单选题】RIA中出现的HOOK效应不正确的说法是
B.
一步法产生的原因是由于大量过剩抗原与被捕获的抗原竞争结合限量的标记二抗
【单选题】在恒温恒压下,化学反应aA+bB=lL+mM的ΔrGm所代表的意义在下列说法中哪种是错误的?()
A.
ΔrGm表示有限物系中反应进行时产物与反应物间的吉氏自由能之差(即终态与始态的自由能之差)
B.
ΔrGm表示有限的反应物系处于该反应进度a时的反应倾向
C.
ΔrGm表示若维持各反应物化学势不变时发生一个单位反应时的吉布斯自由能变化
D.
ΔrGm代表变化率 ,即表示在G-a图上反应进度为a时的曲率线斜率
【简答题】在恒温恒压下,化学反应的ΔrH m = T ΔrS m ,则该反应 。(填写自发、非自发或平衡)
【单选题】What does the author state is the most important reason men die five years earlier on average than women?
A.
Men drink and smoke much more than women.
B.
Men don't seek medical care as often as women.
C.
Men aren't as cautious as women in face of danger.
D.
Men are more likely to suffer from fatal diseases.