绿色物流建设是在维护生态环境和可持续发展的基础上，对传统的物流体系加以改进以形成一个环境共生型的可持续发展的现代物流系统。
参考答案：对
– What did that lady ask you just now?
- She asked me＿＿＿＿＿＿.
A．who was I waiting for
B．whether could I help her
C．how she could get to the bus stop
D．what has happened
X线表现有主动脉结增大伴肺野充血的先心病是
A．动脉导管未闭B．肺动脉狭窄C．室间隔缺损D．房间隔缺损E．法洛四联症
