克服重耕
参考答案:
调整曲拐轴手柄,使犁体尾部向未耕地方向移动,便可克服重耕现象。
— _____ Mary _____ Alice has joined the music club because they have no time. — It’s a pity!
A. Both…and B. Either…or C. Neither…nor
肝颈脉回流征阳性最常见于:
A.右心室肥大
B.肺气肿
C.右心衰竭
D.肝硬化
E.左心衰竭