影响一个系统目标实现的人的因素包括：建设单位和该项目的()的生产人员的数量和质量。

A．供货单位

B．设计单位

C．施工单位

D．所有参与单位

As technological advances put more and more time between early school life and the young person''s final access to specialized work, the stage of ________becomes an even more marked and conscious period.

A．adolescence

B．adjacency

C．advantage

D．adventure