SQL的数据定义功能包括A.定义表 B.定义视图 C.定义索引 D.以上都包括

题型:单项选择题

问题:

SQL的数据定义功能包括

A.定义表

B.定义视图

C.定义索引

D.以上都包括

考点:计算机等级考试数据库技术三级数据库技术笔试
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根据句意用括号内所给单词的适当形式填空。

小题1:Andy jumps even          (far) than any other student in his class.

小题2:Andy is very smart and he always answers questions          (correct).

小题3:        ( Britain ) English “autumn” and American English “fall” mean the same thing.

小题4:Stick your          (finish) picture on the side of the card.

小题5:It’s          (possible) for us to walk 1,000 kilometres in 5 minutes.

(B) 根据句意和汉语注释,写出单词的正确形式。

小题6:Thousands of people          (出席) the meetings last Sundays.

小题7:He is learning drawing because he will take part in the drawing          (竞赛).

小题8:        (物理) is my favourite subject.

小题9:Her face is on the cover of some         (杂志).

小题10:Although I got up a little late this morning, I arrive at school at          (精确) seven o’clock.

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肝硬化最突出的临床表现为

A.肝大
B.脾大
C.腹水
D.呕血
E.交通支扩张

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孔率对蓄电池性能有什么影响?

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在Excel工作表中,单元格区域B2:C4包含______个单元格。

题型:单项选择题

下列卵巢肿瘤来源于性腺间索的是().

A.浆液性囊腺瘤

B.颗粒细胞瘤

C.黏液性囊腺瘤

D.无性细胞瘤

E.卵巢甲状腺肿

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