what is the main idea of the passage?
The history of aviation and its pioneers.
Detailed descriptions of three famous airplanes.
The lives and achievements of Wan Hu, Howard Hughes, and Leonardo da Vinci.
The evolution of transportation design from ancient times to the present.
According to the passage, which of the following statements about Wan Hu is TRUE?
He successfully flew to the stars.
He built a spaceship with 47 kites and two gunpowder rockets.
His spaceship disappeared after an explosion.
His mission to the stars was confirmed to be true.
Why did Howard Hughes's Spruce Goose project fail?
Because the plane was too big to fly.
Because the wood used in construction was not strong enough.
Due to high costs, complexity of woodworking, and Hughes's perfectionism.
Because the technology of the time was not advanced enough to support it.
The phrase "ahead of his time" in Paragraph 5 refers to someone who:
Was born before his actual time of birth.
Was very intelligent and advanced for his era.
Lived in a different time zone than others.
Was always late for important appointments.
What is the author's attitude towards the pioneers mentioned in the passage?
Critical and skeptical.
Admiring and respectful.
Indifferent and uninterested.
Dismissive and contemptuous.