Henry was _____ struggling at sea by a British ship, _____ he was able to survive the accident.

A．spotted; and thus

B．discovered; thus

C．founded; so

D．seen; thus

变性椎间盘邻近的椎体（终板）Ⅰ型信号变化为：

A．T1WI低信号，T2WI高信号

B．T1WI高信号，T2WI低信号

C．T1WI高信号，T2WI高信号

D．T1WI低信号，T2WI低信号

E．T1WI等信号，T2WI等信号