单项选择题
A.4.5% B.9.4% C.11% D.50%
A.Ea≥-100kJ·mol-1 B.Ea≤-100kJ·mol-1 C.Ea=-100kJ·mol-1 D.无法确定
A.E12,A12 B.E12,A1>A2 C.E1>E2,A12 D.E1>E2,A1>A2