737-700/800飞机空调冷气是（）
A. 冲压口来的外界低温气体
B. 飞机气源气体经过空调组件冷却后产生
C. 发动机运转时外涵产生
D. 高温气体经过两级散热器冷却后产生
Your company is designing its public network. The network will use an IPv4 range of 131.107.40.0/22.The network must be configured as shown in the following exhibit.You need to configure subnets for each segment. Which network addresses should you assign？（）
A. Segment A: 131.107.40.0/23 Segment B: 131.107.42.0/24 Segment C: 131.107.43.0/25 Segment D: 131.107.43.128/27
B. Segment A: 131.107.40.0/25 Segment B: 131.107.40.128/26 Segment C: 131.107.43.192/27 Segment D: 131.107.43.224/30
C. Segment A: 131.107.40.0/23 Segment B: 131.107.41.0/24 Segment C: 131.107.41.128/25 Segment D: 131.107.43.0/27
D. Segment A: 131.107.40.128/23 Segment B: 131.107.43.0/24 Segment C: 131.107.44.0/25 Segment D: 131.107.44.128/27
The （） or balance tank collects the re-circulated fuel oil.
A. buffer
B. sump
C. bilge
D. overflowing
产品质最担保责任的基本形式有()
A. 修理
B. 更换
C. 退货
D. 配送
E. 赔偿损失
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