单项选择题

What will be the result of designing the body of SAX-40 as tailless and triangular

A．This shape can make the airplane fly faster.
B．This shape can hold more passengers.
C．This shape can supply more power raising.
D．This shape can be flied easily.

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热门试题

单项选择题

What will be achieved by the design of SAX 40

A．The noise SAX-40 made cannot be heard at take off.
B．The noise SAX-40 made cannot be heard during landings.
C．The noise SAX-40 made during landings will decrease sharply.
D．The noise SAX-40 made at takeoff will decrease sharply.

单项选择题

What can we infer from the last paragraph

A．Designing this plane is like a gamble.
B．It's not sure if any manufacturers will invest in this plane.
C．No manufacturers can afford the investment in this plane.
D．The design of this plane is impracticable.