羔羊育肥技术是将选羔羊育肥至（ ）。
A、3-4月龄
B、4-6月龄
C、5-7月龄
D、6-8月龄

单项选择题企业的多元化经营并不是为了最大股东的财富，而是为了分散企业的多元化经营的风险，从而降低企业管理者和员工的人力资本投资风险。 A、正确 B、错误

单项选择题Read the following sentence patterns and match them to the following functions.（4） Function:________ The effect of... has been studied extensively in recent years. Many investigators have recently turned to... The relationship between... has been studied by many authors. Many recent studies have focused on... A、Establishing the specific topic and providing the relevant background information B、Introducing the present methodology C、 Describing the previous studies on the topic D、Stating the purpose and or the principal activities E、Creating a gap for the significance of the present study