在高速公路行车对突然横穿动物的紧急避险措施不能超过必要的限度。
参考答案：对
处理有毒气体的仪表时，除有二人以上和站在仪表的上风口外，还应（）
A.带好防毒面具
B.带齐仪表工具
C.带上口罩
With his work completed, the manager stepped back to his seat, feeling pleased（）he was a man of action.
A.which
B.that
C.what
D.whether
