浅Ⅱ°烧伤的烧伤深度可达( )
A．表皮层
B．真皮浅层
C．真皮深层
D．皮肤全层
E．皮下组织
参考答案：B
Two short blasts of the whistle have all of the following meanings except（）.
A.I intend to meet you starboard to starboard
B.I do not intend to hold course and speed
C.I intend to overtake you on your port side
D.I intend to alter my course to port
航空活塞发动机过热易出现在下列哪种过程中（）.
A.长时间爬升
B.巡航
C.下降
