单项选择题

The Weddell seal of Antarctica can dive to a depth of about, 1,600 feet and remain submerged for as long as an hour and ten minutes.

A．underwater
B．fearless
C．unconscious
D．breathless
<上一题 目录 下一题>
热门 试题

单项选择题
Fortified medieval towns were often surrounded by two water moats.
A．protected
B．encircled
C．flooded
D．supplied
单项选择题
Louis Sullivan, a famous American architect, varied his structures to suit the local climate.
A．modify
B．enhance
C．accommodate
D．avoid
相关试题