将同一木球分别浮在水、煤油和盐水中，静止时，木球浸入液体中的体积是[ ]
A．在水中最大
B．在煤油中最大
C．在盐水中最大
D．一样大
答案：B
When a fire ______ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
A．broke off
B．broke out
C．broke down
D．broke up
