单选题 Love and bread ______ equally important; the one enriches my spiritual life, and the other my material life.
A. is B. are
C. have been D. has been

【正确答案】 B
【答案解析】[解析] 此句谓语动词应用一般现在时复数形式。因为，第一，是陈述一种一般情况，无需用完成式；第二，虽然love和bread均不可数，但两个不可数名词并列为复数概念。