问题
多项选择题
使用地面气源供气的相关事项是（）。
A.先供气源，才能供电源
B.供气时工作人应离开供气管路，以免伤人
C.起落架收放检查时
D.不应同时使用外部空调系统和机上空调系统
答案
参考答案：B, C, D
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使用地面气源供气的相关事项是（）。
A.先供气源，才能供电源
B.供气时工作人应离开供气管路，以免伤人
C.起落架收放检查时
D.不应同时使用外部空调系统和机上空调系统
参考答案：B, C, D
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| 2004 Summer Camp opens between 9:30 a.m. and 11:30 a.m. from July 20th to July 30th. All children aged 7-14 are welcome. Each child can take part in one of the following activities and needs to pay $ 150 for it. 1. Sports (basketball, football, table tennis, etc) 2. Interest groups (painting, singing, dancing, piano, computer etc) 3. English World (songs, films, games, plays, etc) Some American children are coming to the camp. If you really want to spend an interesting summer holiday, please join us for learning with fun. Act now! Book your seat as soon as possible either by phone or by e-mail. Pay before Jul 18th, then you can have a Mickey T-shirt as a member of the camp. Nanfang Children's Palace No. 23, Dongshan Street, Binhai City Tel: 83212563 E-mail: dsbc2004@ childrenpalace. Net Information Card for 2004 Summer Camp | |||||||||||||||
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