在设计一个调研计划时要求做出决定的有（）。
A.资料来源
B.调研方法
C.调研工具
D.抽样计划
E.接触方法
参考答案：A, B, C, D, E
有25人坐船过河，每条船最多坐5人，至少需要用______条船，才能一次全过河．
The captain was the first person ______ the hole in the side of the ship torn by a coral bed, so he had
all the things _______ away _____ the boat in the water. [ ]
A. finding; thrown; to raise
B. to find; to throw; to raise
C. to find; thrown; to raise
D. to find; thrown; raised
