单项选择题

*气旋的爆发性发展是指________。 A.
A.6h内加深率每小时大于或等于1hPa B.
B.12h内加深率每小时大于或等于1hPa C.
C.24h内加深率每小时大于或等于1hPa D.
D.48h内加深率每小时大于或等于1hPa

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问答题
未来翻译领域的企业和译员均将出现的趋势是（）。
A.细分 B.汇总
答案：A##%_YZPRLFH_%##a
单项选择题
Which of the following is NOT the Advantages of Relational database?
A、Based on the perfect theory of relational algebra, with strict standards
B、Supporting the four characteristics of transaction ACID
C、Easy to scale out
D、Use of indexing mechanism can achieve efficient queries