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【单选题】
下面属于对称算法的是()。A.
数字签名
B.
序列算法
C.
RSA算法
D.
数字水印
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【单选题】Dick is the only one of the teachers who ____ Chinese. He is one of Mary’s friends who _____ been to China.
A.
know; have
B.
knows; have
C.
know; has
D.
knows; has
【单选题】A literacy animator is one who_____.
A.
struggles for a more meaningful life
B.
frees people from poverty and illiteracy
C.
is committed to marginalize the illiterate
D.
is concerned with what is behind illiteracy
【单选题】Jeremy Shu-How Lin, NBA star, is one of _____ few basketball players who are very popular to Chinese fans. [ ]
A.
an; the
B.
the; a
C.
a; the
D.
an; a
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