单项选择题

Taylor is most famous for ______.

A．his application of scientific methods to work
B．his book 7he Principles of Scientific Management
C．his various innovations in steel processing
D．the spreading of his scientific management method

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单项选择题

Which of the following is NOT included in the present space tourism

A．Visits to museums.
B．Visits to space camps.
C．Visits to rocket-launch recovery sites.
D．Low-gravity aircraft trips.

单项选择题

According to the passage, which of the following statements is NOT true

A．Edwin "Buzz" Aldrin walked on the moon 30 years ago.
B．Apollo program was a bold program.
C．Edwin "Buzz" Aldrin walked on the Mars 10 years ago.
D．Edwin "Buzz" Aldrin is an astronaut of America.