【单选题】It is high time that we ____ for the final exam. A. prepare B. preparedC. will prepare D. preparing
【单选题】My brother is very tall. The little bed won't for him. [ ]
【单选题】我国烹饪历史上的“铁烹时期”是在( )以后。
【简答题】A.To fix a button. B.To prepare breakfast. C.To wait for the school bus. D.To play basketball
【单选题】我国烹饪历史上的“铁烹时期”是在()以后
【单选题】萃取过程的本质可表述为( )。
D.
将物质由亲水性转变为疏水 , 并降低了化学势的过程。