2. 外语
  3. Certain portable electronic devices(PEDs)may interfere with aircraft navigational equipment. PED use is permitted while on the g

Certain portable electronic devices(PEDs)may interfere with aircraft navigational equipment. PED use is permitted while on the g

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问题    Certain portable electronic devices(PEDs)may interfere with aircraft navigational equipment. PED use is permitted while on the ground when the boarding door is open, and in flight when advised by crew members. About 10 minutes before departure, passengers will be asked to turn off computers, cell phones and other PEDs. The following PEDs are approved for use during the flight time:
   - Personal Computers
   - Handheld computer games
   - Personal stereo and video devices
   Medical devices are permitted at all times while TVs. radios, two-way radios, remote-control devices and some other electronic devices are not permitted. Due to safety concerns, the crew may at any time request that PEDs be turned off.
   Cell phones may be used only in the following instances:
   - When the aircraft is at the gate and the boarding door is open.
   - When the aircraft is on the ground away from the gate and the captain has approved their use.
When can a passenger be allowed to use a PED on a plane in flight? When permitted by______.
选项
答案crew members
解析 本题考查在飞机飞行时乘客被允许使用移动电子设备的情况。根据线索词be allowed，use a PED，in flight和permitted定位到原文第一段第二句。定位句指出，在飞机飞行时乘客被允许使用移动电子设备的情况是：when advised by crew members“得到了机组人员的允许”。因此本题的答案为crew members。
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