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【单选题】
有“成绩”数据表结构如下图所示,现要将科目ID为40的期末成绩提高15%,应使用以下哪条SQL语句 ▲ 。
A.
Update 成绩 Set 期末成绩=期末成绩+15% Where 科目ID="40"
B.
Update 成绩 Set 期末成绩=期末成绩*15% Where 科目ID=40
C.
Update 成绩 Set 期末成绩=期末成绩*1.15 Where 科目ID=40
D.
Update 成绩 Set 期末成绩=期末成绩+1.15 Where 科目ID="40"
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举一反三
【单选题】The national goals for women’t health make it easier to
A.
meet women’S health needs
B.
assess the status of women’t health
C.
solve women’S health problems
D.
deal with the health care crisis
【判断题】必须脂肪酸是指,人体内不能合成,必须从食物中获得的脂肪酸
A.
正确
B.
错误
【单选题】必须脂肪酸是指:
A.
单不饱和脂肪酸
B.
饱和脂肪酸
C.
n-3系列脂肪酸
D.
人体不可缺少 而体内又不能合成的脂肪酸
【单选题】必须脂肪酸是指( )?
A.
黄体酮
B.
维生素D3
C.
亚油酸
D.
亚酮酸
【单选题】必须脂肪酸是指?
A.
饱和脂肪酸
B.
单不饱和脂肪酸
C.
多不饱和脂肪酸
【单选题】The author of the passage thinks that______.
A.
it's much easier to learn a language today than in the past
B.
it's not necessary for many people to learn a foreign language
C.
it's difficult to learn a foreign language
D.
it's not important whether a language is learned quickly or slowly
【单选题】The reason why it is easier to describe a person's personality in words than his face is that ______.
A.
a person's face is more complex than his personality
B.
a person's personality is easily distinguished
C.
people's personalities are very Mike
D.
many words are available when people try to describe one's personality
【单选题】必须脂肪酸是指( )?
A.
亚油酸
B.
维生素D3
C.
黄体酮
D.
亚酮酸
【单选题】The reason why it is easier to describe a person's personality in words than his face is that
A.
a person's face is more complex than his personality
B.
a person's personality is easily distinguished
C.
people's personalities are very alike
D.
many words are available when people try to describe one's personality
【单选题】Unit four is easier thaan Unit Five .
A.
more
B.
much
C.
quite
D.
very
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