问题
选择题
— It _____ the Chinese people eight years to build the Three Gorges Dam (三峡大坝).
— How great! [ ]
A. spends
B. costs
C. paid
D. took
答案
答案：D
搜题请搜索小程序“爱下问搜题”
— It _____ the Chinese people eight years to build the Three Gorges Dam (三峡大坝).
— How great! [ ]
A. spends
B. costs
C. paid
D. took
答案：D
后刚好着地．已知
为大于3的整数，取
,则( )
内物体下落的高度为
内物体下落的高度为
内物体下落的高度为