建立联合库存的协调管理机制应该建立共同的合作目标；建立协调控制方法；建立信息沟通的渠道或系统；建立利益的分配、激励机制 。（ ）
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lesson 18 Directions: in this part, you are going to listen to five transmissions or short exchanges and choose the correct answer from four choices.
A. 9 miles 6 o’clock 9000feet fast moving from left to right
B. 9 miles 6 o’clock 9000feet crossing from right to left
C. 6 miles 9 o’clock 9000feet fast moving from right to left
D. 6 miles 9 o’clock 9000feet crossing from left to right
lesson 18
A. same direction
B. parallel
C. converging
D. opposite direction
lesson18
A. Flying activity is in the south field
B. The controller wants the pilot to fly east
C. A glider will land in the south field
D. A glider is hanging in the north field
lesson 18
A. His altitude is only 300 meters
B. He is 40 KM per hour too fast
C. He is turning base for R/W36
D. There is a balloon near the runway
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