1620年法国的Beaulier船长在非洲南部首次看见会潜游捕食的企鹅时,称其为什么?
参考答案:
“有羽毛的鱼”
电池是一种能将化学能转换为()的装置.
As there was a power failure in the hospital, the doctor had to ()operation.
A.call for
B.call off
C.call on
D.cal lout