A:④②①③
B:①④②③
C:④①②③
D:①②③④
—Sorry, Mrs. Smith! I'll do it i____
一物块轻轻放入盛满煤油的大烧杯中,静止后有160g煤油溢出;将其轻轻放入盛满水的大烧杯中,静止后有180g水溢出,已知煤油的密度是 ,则物块在水中静止时的状态及物块的密度分别是( )
— I hear Susan eats little or for supper.
— It's really bad for her health. Why not exercise more to lose weight?
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