问题
选择题
E-mail, which has been widely used in ________ recent years, is ________ good way of ________ communication
A．the, a, the
B．/, a, the
C．/, /, a
D．/,a, /
答案
答案：D
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E-mail, which has been widely used in ________ recent years, is ________ good way of ________ communication
A．the, a, the
B．/, a, the
C．/, /, a
D．/,a, /
答案：D