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【简答题】
每个触发器有 和 两个特殊的表在数据库中。
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举一反三
【单选题】The book was written in 1946, _____ the education system has witnessed great changes.
A.
when
B.
during which
C.
since when
D.
since then
【简答题】( )是美国国家标准局公布的第一个数据加密标准,它的分组长度为位,密钥长度为56位。
【简答题】()是美国国家标准局公布的第一个数据加密标准,它的分组长度为()位,有效密钥长度为()位。
【单选题】The book was written in 1946, the education system has witnessed great charges.
A.
when
B.
during which
C.
since then
D.
since when
【单选题】The book was written in 1946, the education system has witnessed great changes. [ ]
A.
when
B.
during which
C.
since then
D.
since when
【简答题】The book was written in 1946, ___ ___ the education system has witnessed great charges. A．when B．during which C．since then D．since when
【单选题】The book was written in 1946, _______ the education system has witnessed great changes.
A.
since then
B.
when
C.
since when
D.
during which
【简答题】()是美国国家标准局公布的第一个数据加密标准，它的分组长度为()位，密钥长度为( )位。
【单选题】某企业向摩托车制造厂(增值税一般纳税人)订购摩托车10辆，支付货款(含税)共计250800元，另付设计、改装费30000元。摩托车制造厂计缴消费税的销售额是（ ）。
A.
214359元
B.
240000元
C.
250800元
D.
280800元
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