主机、付机必须适合船舶所遇到的正浮情况是：横倾（）°、纵倾（）°。
A.10；5
B.15；10
C.5；10
参考答案：A
Mike Smith has been in China for fifteen years. He has made _____ Chinese friends.
A. a lot of B. a bit of C. A set of .
知识产权的基本内容不包括( )
A．商标权
B．版权
C．地理标志权
D．专利权
