Mike has put on so much weight this year that his mother has to________all his trousers to his measure. [ ]

A. let out  

B. give away

C. bring in  

D. lay out

（），员工可以代其他岗位人员履行职责.

A.经双方同意

B.经一方同意

C.只要不混岗、不违规，经双方同意

D.经授权批准，在不违规的前提下