Don't handle the vase as if it ____ made_爱下问搜题

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问题选择题

Don't handle the vase as if it ____ made of steel. [ ]

A. is

B. were

C. has been

D. had been

答案

答案：B

解答题

，Q=（x+y）²-2y（x+y）．小敏、小聪两人在x=2，y=-1的条件下分别计算了P和Q的值，小敏说P的值比Q大，小聪说Q的值比P大，请你判断谁的结论正确，并说明理由．

选择题

—These two bikes are both beautiful. Have you decided which to buy?
—Yes, I have. I'd like the blue one the red one.

A. instead
B. instead to
C. instead of
D. instead on