当螺柱均匀紧固后，轴能够轻松地转动且没有间隙，显点也达到要求，即轴瓦刮削合格。
参考答案：错
－What do you think of store shopping in the future?
－Personally, I think it will exist along with home shopping but ______.
A．will never replace
B．would never replace
C．will never be replaced
D．would never be replaced
原发性良性肺肿瘤，下列描述哪项不对（）
A.球形肿块，边缘光整，可有浅分叶
B.空洞少见
C.可有斑点状或结节状钙化
D.肺门、纵隔淋巴结正常
E.常有细短毛刺
