按照材料采购合同的约定,供货方交付产品时,可以作为双方验收依据的资料包括 ( )等。
A.图纸
B.产品合格证
C.出厂单据
D.双方签订的采购合同
E.样品
参考答案:A,B,D,E
He asked me how much ________ on the mountain bike.
A.did I pay
B.I had spent
C.did I spend
D.I had cost
下列哪项是痰湿内阻所致头晕的表现
A.头晕胀痛
B.头晕昏沉
C.头晕眼花
D.头晕耳鸣
E.以上均非