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【简答题】
新建一个“student”表,其中有‘ C(8) 主键关键字约束,姓名 C(6) 不为空约束,性别 C(2) 默认值“男”’3个字段,带完整性约束的实现语句是
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举一反三
【单选题】The language brought to North America by the British explorers in the seventeenth century belongs to the early stage of
A.
Old English.
B.
Middle English.
C.
Modem English.
D.
Contemporary English.
【单选题】The author holds that in the seventeenth-century New England
A.
Puritan tradition dominated political life.
B.
intellectual interests were encouraged.
C.
Politics benefited much from intellectual endeavors.
D.
intellectual pursuits enjoyed a liberal environment.
【单选题】Who won the Civil War in the seventeenth century?
A.
the Cavaliers
B.
the Roundheads
C.
the Vikings
【简答题】A．In 1774. B．In 1765. C．In the seenth century. D．In the nineth century.
【单选题】听力原文：In the seventeenth century, European soldiers who came across some Indians in the Old World to find them living in a society without a formal headship. What is the profession of the speaker?
A.
A historian.
B.
A social worker.
C.
A political leader.
D.
An old soldier.
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