—Can you guess _______ the new T-shirt last week?
—Sorry, I don't know.
A:how much did she pay for
B:how much does she pay for
C:how much she paid for
下图反映了某时期我国公私经济成分的比例情况,这种情况最早应出现于( )
____
下列属于尼罗河流域文明成果的是( )