当施工作业噪音可能超过施工现场的噪声限值时,应在开工前向(),()申请,核准后才能开工。
参考答案:建设行政主管部门;环保部门
Henry had just given himself for lost ______ he was spotted by a ship.
A.when
B.while
C.as
D.after
简述人体双器官在足部反射区分布的对称性?