這兩個標題都是今天晚上的新聞標題...這就是美股下跌的原因問題非常嚴重1.Mortgage rates drop to another low, 4.58 pct.Average rates on 30-year fixed mortgages fall to 4.58 pct., lowest level since mid-1950s2.May pending home sales tumble to record lowPending homes sales tumble in May to lowest level on record after tax credits expire