选择题：With all its advantages, the computer is by no mea

题目内容：

With all its advantages, the computer is by no means without its ________.
A. boundaries B. limitations C. confinements D. restraints

参考答案：

在重复简单随机抽样中，抽样平均误差要减少1/3，则样本单位数就要扩大到A、4倍B、2倍C、3倍D、9

在重复简单随机抽样中，抽样平均误差要减少1/3，则样本单位数就要扩大到A、4倍B、2倍C、3倍D、9倍

分类：英语（专升本）题型：选择题

分类：英语（专升本）题型：选择题

They chose the night when her old friend Scotty held her birthday party as their

分类：英语（专升本）题型：选择题

Fossil fuels are non-renewable, so we need to find alternative energy sources.

分类：英语（专升本）题型：选择题

They are (A.looking; B. searching) the woods for the missing child.

分类：英语（专升本）题型：选择题