单项选择题

The basic model of A3XX can carry more than 500 passengers.

A． Right
B． Wrong
C． Not mentioned
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单项选择题
A3XX will be bigger than the B-2 stealth bomber.
A． Right
B． Wrong
C． Not mentioned
单项选择题
No fasteners will be used in building A3XX because all components will be welded together.
A． Right
B． Wrong
C． Not mentioned
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