搜搜做题作业网▓▓▓▓▓一道英语选择题..▓▓▓▓▓
来源：学生作业帮 编辑：搜搜做题作业网作业帮 分类：英语作业 时间：2024/07/18 20:40:13
▓▓▓▓▓一道英语选择题..▓▓▓▓▓
The medicine should be taken ___ every four hours.
A.two at a time B.two at one time
A.two in a time B.two in one time
The medicine should be taken ___ every four hours.
A.two at a time B.two at one time
A.two in a time B.two in one time
B time常用at 而at one time表示一次每次的意思