“阴狐疝气者,偏有小大,______,蜘蛛散主之。”
参考答案:时时上下
下心盘面与下旁承面测量尺、下旁承面与滚子顶面测量尺:测量的目的是保证落车后弹性旁承具有合适的(),确保车辆在运用中具有合适的回转阻力矩。
He would like to meet the headmaster ______ 8 a.m. ______ 9 a.m. tomorrow.
A.at; to
B.at; at
C.between; and
D.from; and