雷沃谷神联合收割机液压传动原理是依靠()的变化来建立油路内部的压力来传递动力。
A.油压
B.密封容积
C.液压油数量
D.温度
参考答案:B
《禹鼎志》的作者是()
A.吴承恩
B.王实甫
C.董解元
D.关汉卿
______ with great pressure in the job market, university graduates start to make use of blogs to attract publicity.
A.To face
B.Facing
C.To have faced
D.Faced