【单选题】采用现值指数法进行方案选择时,以下方案中最优方案是( )。
【单选题】经眼睑直接进行眼部二维超声检查,其最佳探头频率是
【单选题】采用现值指数法进行方案选择时,以下方案中最优方案时( )
【单选题】So far, this is the best way I've thought of ________ this problem. [ ]
【单选题】经眼睑直接进行眼部超声检查,最佳探头频率应是
【单选题】This is the best way they have thought of _____the ______miners.
【单选题】经眼睑直接进行眼部超声检查,最佳探头频率应是()
【单选题】This is the best way I have thought of __________ the problem.
【单选题】This is the best way _____ the river from _____ .
A.
to prevent; being polluted
C.
preventing; being polluted