中共______明确提出中国经济体制改革的目标是建立社会主义市场经济。( )
A.十二大
B.十三大
C.十四大
D.十五大
参考答案:C
Several professors from Peking University came to visit our school, to my surprise, one of ________ was my aunt.
A.them
B.those
C.which
D.whom
台车需要润滑的外露部件应()