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【单选题】
You can call me __________ 0512-51234567 or e-mail me __________ lily@changshu.com.cn mailto:lily@changshu.com.cn . [ ]A.
on, at
B.
at, on
C.
by, on
D.
on, on
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【单选题】The product was inspected and quarantined by the competent authority, in accordance ( the relevant regulations.
A.
on
B.
to
C.
for
D.
with
【简答题】A．intelt B．competitive C．capable D．competent
【单选题】The competent educational research ______.
A.
does not have the same standards with competent scientific research
B.
is a part-time activity of education
C.
should have standards which require different duties
D.
produces the same influence with scientific research
【简答题】网络安全完整性的主要防范措施是____与____。
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