皮皮学，免费搜题
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搜题
【单选题】
查询手机信息表中前30 % 的记录的信息A.
select top 30 percent * from mobilebrand
B.
select top 30 percent * from mobileinfo
C.
select distinct 30 percent * from mobileinfo
D.
select top 30 * from mobileinfo
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】以下哪些属于多元文化主义策略实现所需要的预设条件?
A.
社会宽容度较低。
B.
不以种族、肤色、语言、经济发展等判断一个人。
C.
社会凝聚力高。
D.
对种族群体持消极态度。
【简答题】请根据以下内容回答下列各题 A—Engine Fuel System H—the electric system B—Lights and Wires I— power train C—Starting System J—one-way drive D—under pressure K—horse-drawn wagon E—lower hood lines L—spun glass F—heat...
【简答题】Computers _____ from abroad are usually more expensive.
【简答题】The electric system supplies lighting and driving power for the automobile.
【简答题】She is a cute, quiet girl. As a daughter, she has no secrets from her mother, who is very pleased with her. But recently she has become somewhat mysterious, and not so open as before. She has a di...
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