What percentage does Google master the market？
A. 4/10
B. 2/3
C. 6/10
D. 1/4
查看答案
A．An essay.B．A magazine article.C．A poem.D．A short story.
An essay.
B. A magazine article.
C. A poem.
D. A short story.
How many leap years will there be in the decade commencing 1 January 2019？
A. 1
B. 2
C. 3
D. 4
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