正确答案是（）
A. skims
B. slides
C. slips
D. skips
Just as a force is required to change the speed of an object, __________ a force must act
A. as
B. thus
C. so
D. like
Jules Verne's stories about the future inventions were based on
A. his knowledge of science and his own experiences in adventure.
B. his imagination and his love for science.
C. his own experiences in adventure and his imagination.
D. his knowledge of science and his imagination.
正确答案是（）
A. as many as
B. as usual as
C. as much as
D. as long as
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