生产组织是确定( )准备工作的中心。
A.完成投资运营时B.完成投资运营后C.完成投资运营前D.完成建筑工程后
参考答案:C
关于骨巨细胞瘤,下列哪项是错误的()。
A.多见于年轻人
B.病灶在骨端,局部有骨破坏
C.骨端膨胀,骨皮质破坏,侵入软组织
D.常用的手术方法是局部刮除,不易复发
E.若有恶变应截肢
— Did you catch the early bus this morning?
— No. It had left the stop________I arrived there.[ ]
A. as soon as
B. as the time
C. by the time
D. during the time