施工作业必须纳入月度施工计划,应利用()进行。
A、临时天窗
B、垂直天窗
C、施工天窗
D、维修天窗
参考答案:C
He managed to reach the summit of his career, but it was at the ________ of his health.
A.consumption
B.consequence
C.expense
D.evidence
竖毛肌