题目：【单选题】4.Window shade adjustment
Question:When should the window shades be kept open?
[音频]
A、While taking off and landing
B、While there is strong sunlight
C、While sleeping
D、While reading
喵查答案：While taking off and landing题目：【单选题】4.Window shade adjustment
Question:When should the window shades be kept open?
[音频]
A、While taking off and landing
B、While there is strong sunlight
C、While sleeping
D、While reading
喵查答案：While taking off and landing
