丹毒不需要与下列哪一种疾病相鉴别（）。
A.接触性皮炎
B.类丹毒
C.癣菌疹
D.银屑病
E.蜂窝织炎
参考答案：D
______ the 1500s ______ the first European explored the coast of California.
A．It was not until... when
B．It was until... when
C．It was not until... that
D．It was until... that
政府投资是指政府通过发行债券和国有企业发行股票融资进行的投资。( )
