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A．To fly one following another.
B．To fly without stopping.
C．To use land features as the guide.
D．To take one route only.
答案
更多“A．To fly one following another.B．To fly without stopping.C．To use land features as the”相关的问题
第1题
What does NASA plan to do？
A．To build one more Hyper-X aircraft.
B．To carry out three more Hyper-X experiments.
C．To make the aircraft fly higher and longer.
D．To test another hypersonic flight at 10 times the speed of sound.
第2题
What does NASA plan to do？ 查看材料
A.To build one more Hyper-X aircraft.
B.To carry out three more Hyper-X experiments.
C.To make the aircraft fly higher and longer.
D.To test another hypersonic flight at 10 times the speed of sound.
第3题
"Unfold" means ______.
A．to appear and spread
B．to fly over
C．to set to work
D．to get busy
第4题
Q: Why did Benjamin Franklin fly a kite in a storm？
A.To protect houses against lightning.
B.To test the effects of the lightning rod.
C.To find out the strength of silk for kites.
D.To prove that lightning is electricity.
第5题
The phrase "to get airborne" in the second paragraph most probably means______.
A．to fly in the air
B．to be born in the air
C．to pilot the plane in the air
D．to be transported by air
第6题
Men make use of the pigeons' instinct ______.
A．to find the way home
B．to learn to fly
C．to send messages
第7题
The monkey picked up a large stone, because he wanted__________.
A．to fight the death
B．to put the fly to death
C．to hit at a mark
D．to strike the old man on the face
第8题
The monkey picked up a large stone, because he wanted ______.
A．to fight the death
B．to put the fly to death
C．to hit at a mark
D．to strike the old man on the face
第9题
For what purpose does the pilot shut off all the engines？
A．To find out exactly what happens.
B．To save fuel.
C．To fly more slowly.
D．To keep balance.
第10题
What has NASA planned to do？
A．To make another 11-second hypersonic flight at 10 times the speed of the sound.
B．To make three more Hyper-X experiments.
C．To retest the aircraft that is left.
D．To make the aircraft fly higher and longer.
