【单选题】Which of the following statements is NOT true?
A.
The frame. of a kite is attached to a long string held in the hand or wound on a drum.
B.
The ancestor of the double box-shaped body had three wings.
C.
The cutter kite has a diamond-shaped body had no wings.
D.
The current folding kite is developed to test theories of flight.
【单选题】A receiving host computes the checksum on a frame and determines that the frame is damaged.The frame is then discarded.At which OSI layer did this happen?()
【单选题】Which of the following statements is NOT true?
A.
The frame. of a kite is attached to a long string held in the hand or wound on a drum.
B.
The ancestor of the double box-kite is the box-kite.
C.
The cutter kite has a diamond-shaped body but no wings.
D.
The man-lifting kites were developed by German.
【单选题】_____ is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
【简答题】下列条目中,( )不是语句ALTERTABLE的功能。 A)增加表的完整性约束 B)删除表的完整性约束 C)修改表中的列 D)删除表中的列
【单选题】某企业应付账款账户期初借方余额为2500元,本期新增加的应付款项为7000元,实际支付的应付款项为4000元 ,则该账户期末余额为( )。
【简答题】下列条目中,不是语句ALTERTABLE功能的是( )。 A)增加表的完整性约束 B)删除表的完整性约束 C)增加表中的列 D)删除表中的列
【单选题】下列不符合颈部动脉损伤特点的是
A.
常见于颈部火器伤、刃器、锐器的穿透、刺、切致伤