佩带自救器撤离时，要匀速行走，保持呼吸均匀。禁止狂奔和取下鼻夹，口具或通过口具讲话。
参考答案：对
—Would you mind my _ _ here?
— . You can sit here if you like. [ ]
A. sit; Yes, of course
B. sitting; Certainly not
C. to sit; Certainly not
D. sitting; Yes, of course
所有具有承销业务资格的证券公司都必须成立内核小组。( )
