报社在开展多种经营时为什么要采取同向发展的思路？
参考答案：
同向发展是指在多种经营项目的选择上应优先选择那些与报业经营性质相近的经营项目。
冷凝集综合征患者的抗体类型为（）
A.IgM
B.IgG
C.IgA
D.结合补体
E.补体
The period, which has been referred to as ______ in the literary history of the United States, is ranging from 1865 to 1914.
A. the Age of Realism B. the Age of RomanticismC. the Age of Renaissance D. the Age of Transcendentalism
