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What is NOT true about the scramjet engine？
A．It goes slower than a rocket．
B．It extracts oxygen from the air that flows through the engine．
C．It works only at speeds greater than five times the speed of sound．
D．It doesn’t carry its own 0xygen supply．
答案
更多“What is NOT true about the scramjet engine？ A．It goes slower than a rocket．B．I”相关的问题
第1题
Which of the following statements is true about the man？
A．The man always shows concern about the people around him.
B．The man cares nothing about the fashion.
C．The man knows nothing about the job of the woman before.
D．The man often attends the charity bazaar.
第2题
What are they doing？
A．They are listening to a piece of music.
B．They are writing a book about the moon.
C．They are studying the life of Beethoven.
第3题
What does the man suggest the woman should do？
A．Take a class at a local college.
B．Talk about her experiences.
C．Get to know the students well.
D．Buy a new camera.
第4题
In what kind of books can the passage be most probably found？
A．Geography books.
B．Books about winds.
C．History books.
D．Books on Nature.
第5题
What has changed the Nuclear Family in North America？
A．People have changed their ideas about marriage.
B．Women become more independent.
C．The economy is changing.
D．All of the above factors are acting together.
第6题
The study of doctors' expectations shows that ______.
A．doctors are sometimes not clear about what drugs to give the patients
B．most dentists have a 50-50 chance of curing patients
C．doctors' expectations play a big part in curing patients
D．dentists always know it when sham drugs are given
第7题
What can we infer from the conversation？
A．The woman is married.
B．The woman feels crazy about her big family.
C．The man's family members never get together.
D．The woman feels excited about going home for the holidays.
第8题
We can infer from the story that in the dream laboratory, ______.
A．dreams are recorded about five minutes after the end of each dream
B．if the dreamer is awoken immediately after his dream, he can usually recall the entire dream.
C．it is found that what happens during the day often affects what one dreams
D．dreams' contents are analyzed according to the brain waves recorded
第9题
What is true about the advertised property？
A．It was remodeled in the 1980s.
B．It is located close to the ocean.
C．It has annual taxes of over $9,000.
D．It has a combined kitchen and dining room.
第10题
What is true about the guarantee？
A．It expires after 90 days.
B．It is valid in select states.
C．A proof of purchase is required.
D．It is for the Comfort Level II bed only.
第11题
What is true about the survey？
A．It was not designed by Pro Plumbing Outlet.
B．It exists in both paper and electronic forms.
C．It is expected to take five minutes to complete.
D．It is designed to be taken by either merchants or customers.
