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问题
填空题
写出两个既是中心对称,又是轴对称的图形( )
答案
矩形,圆(答案不唯一)
选择题
Share prices on the Stock Exchange fell sharply in the morning but _____ slightly in the afternoon.
A. restored
B. recovered
C. regained
D. remained
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判断题
电压的单位是伏特。()
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