This popular sports car is now being _________ at the rate of a thousand a week．

A.turned down

B.turned out

C.turned up

D.turned on

答案及解析： B

解析：

此句中用turned out表示“生产”。turn down意为“关掉，拒绝”；

turn up意为“出现，开大(声音等)”；

turn on “打开”。