Question

一.单选题(共20题,共40分)
48.the evacuation door for the safety exit of the experimental building should ( ). (2分)
○a.free open
○b.open outward
○c.open inward
○d.close, open when needed

Explanation:

According to safety regulations, the evacuation door for the safety exit should open outward. This allows for a smoother and more efficient flow of people during an emergency. If the door opened inward, it could potentially be blocked by the crowd pushing against it. Free - open (A) is not a standard safety requirement as it may lead to security issues. Closing the door and opening when needed (D) is not suitable for an emergency exit. Opening inward (C) is incorrect for the reason mentioned above.

Answer:

B. Open outward