漫画《努力》体现了中 * * 的传统美德和精神是[ ]
①爱好和平②自强不息③敬业乐群④自力更生
A.①③
B.①④
C.③④
D.②④
答案:D
Tom took a taxi to the airport, only ______ his plane high up in the sky.
A.to find
B.finding
C.being found
D.to have found
油船压力/真空阀的()在货油舱甲板上的高度应不低于2米。