OG-50 没人问：新问题。 请NN帮帮

yaoyao99

No.  The possibility of the device malfunction must be linked to plane
crashes.  The device can still malfunction, for example, not make any
warning at all, and cause no additional crashes.

[此贴子已经被作者于2006-5-2 8:38:17编辑过]

yaoyao99

Sure.  The second sentence has two conditions:
1. The system will malfunction, for example, stop working and not provide any warning.
2. The malfunctioning of the system will mislead pilots, causing crashes.

Your suggestion and the original choice A only talks about condition 1, which may or may not lead to condition 2.  That's why it won't work as a supporting evidence.

yaoyao99

Anytime!