工程兵主要有直属工程兵和队属工程兵组成，通常有（）编制。
A、师、团、营、连
B、团、营、连
C、旅、团、营、连
D、旅、营、连
参考答案：B, D
What is the most appropriate title for this passage a. Two Types of Stocks b. A New Strategy of Investment c. Distinctions between Trading and Investment d. Conflicting Perspectives on Stock Investment
交强险退保有哪些情形？
