追求最大的满意时消费者进行（）时的追求。
A、换货
B、退货
C、挑选货品
D、购买决策
参考答案：D
She has a bad cold. She ________ a doctor.[ ]
A. needs to see
B. need to see
C. needs see
D. need seeing
结核性胸水检查结果
A．胸水LDH含量503U/LB．胸水ADA含量96U/LC．两者均可D．两者均不可
