移栽植物时，根部要带着一个土坨是为了（ ）
A．减少水分散失
B．保护幼根和根毛
C．防止营养流失
D．防止植物不适应环境
答案：B
--- Whom shall I give the document?
--- To ______ is in the office. However, ______ to require a written paper for it.
A． whom; make sure
B． who; make sure
C． whomever; be sure
D． whoever; be sure
日常办公事务工作流程应由（）来负责。
A、职权明确的专人
B、办公室主任
C、机关主管领导
D、业务主管
