单选题
The improvements in technology have______the prices of computer considerably in recent months.
【正确答案】
B
【答案解析】解析：短语辨析题。bring back意为“使恢复”，bring down意为“降低，减少”，bring on意为“引起，导致”，bring up意为“抚养”。参考例句：The bad weather brought on his cold again恶劣的天气使他再次感冒。