It is easy to be thankful for the good things, ________ a life of rich fulfillment comes to those who are also thankful for the setbacks.    [ ]

A. that

B. which

C. while

D. when

下列关于卡马西平叙述，哪一项是错误的（）

A．能阻滞钠通道，抑制癫痫灶及其周围神经元放电

B．对精神运动性发作疗效较好

C．对癫痫并发的精神症状也有较好疗效

D．对外周性神经痛有效

E．具有肝药酶诱导作用