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【单选题】
● 数据库SQL语言 中，' AGE IN（15,35 ） ' 短语的正确含义是（14） 。 （14）A.
AGE = 15 AND AGE = 35
B.
AGE = 15 OR AGE = 35
C.
AGE <=35 AND AGE> = 15
D.
AGE < 35 AND AGE> 15
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举一反三
【单选题】A manufacturer provides warranties at the time of sale to purchasers of its product lines. Under the terms of the warranty, the manufacturer undertakes to repair or replace items that fail to perform ...
A.
At the time of sale.
B.
At the end of the warranty period.
C.
C When the company is notified of a claim.
D.
Never. A provision should not be recognized; rather the costs associated with the warranty should be expensed as incurred.
【单选题】Uncle Wang likes _____ apples, but today he doesn't like _________ apples. [ ]
A.
eating; eating
B.
eating; to eat
C.
to eat; eating
【单选题】若要判断 char 型变量 c 中存放的是否为小写字母,以下正确 的表达式是
A.
(c>='a') && (c<='z')
B.
'a'<=c<='z'
C.
(c>='a') || (c<='z')
D.
('a'<=c) AND ('z'>=c)
【单选题】若要判断 char 型变量 c 中存放的是否是小写字母,以下正确的表达式是( )
A.
’a’<=c<=’z’
B.
(c>=’a’)&&(c<=’z’)
C.
(c>=’a’)||(c<=’z’)
D.
(’a’<=c)and(’z’>=c)
【简答题】Do you think the brand of H ä agen-Dazs is a successful one? Why or why not?
【单选题】在EC290B机型上，下列哪些动作可实现大臂双泵合流？
A.
单独做大臂提升动作。
B.
大臂提升+小臂收回动作。
C.
大臂提升+回转动作。
D.
大臂提升+行走动作。
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