【单选题】将十进制数168转换成二进制数是( )。
【多选题】生物农药 利用天然生物资源如( )开发的农药。
【单选题】The car is slow, _______?
【单选题】The car is running ________. It seems to be flying!
【单选题】I shouldn ’ t have bought the car, for it is slow and expensive.
A.
我本不应该买那部车,因为它不但速度慢而且价格贵。
【单选题】楼板层的结构层为( ),地坪层的结构层为( )。