甲醇-空气燃料电池（DMFC）是一种高效能、轻污染的车载电池，其工作原理如下图。下列有关叙述正确的是

A．H ⁺从正极区通过交换膜移向负极区

B．负极的电极反应式为：CH₃OH(l) + H₂O(l)－6e^－＝CO₂(g) + 6H ⁺

C．d导出的是CO₂

D．图中b、c分别是O₂、甲醇

It is reported that people are         likely to tell lies over the phone as they are in emails.

A．as twice

B．twice than

C．twice more

D．twice as