失控船应属于()。
A.锚泊中
B.搁浅中
C.在航中
D.以上都有可能
参考答案:C
The fact is that writing can bring me absolute________,and I always feel the urge to write good reference books for students.[ ]
A. occasion
B. performance
C. appreciation
D. enjoyment
采用哪些措施可以解决焦炉高向加热均匀性的问题?