The word “complex” in the last sentence probably means ________.
[A] complete
[B] Worthy
[C] difficult
[D] modern
查看答案
53 A which B that C this D what
He suggested the sports meet be ________ because of the bad weather.
[A] put away
[B] put up
[C] put down
[D] put off
A wind tunnel can be used to find out ________.
[A] how fast a plane can rise
[B] how smooth a plane’s surface is
[C] if a plane can land in a very strong wind
[D] if a plane will drop when flying at a low height
Which of the following best shows Kristy’s true heroism?
[A] She did not feel terrified at the accident.
[B] She protected herself as well as the two brothers from harm.
[C] She put her life “on the line” to save others.
[D] She was regarded as a member of Dean’s and Donald’s families.