皮皮学，免费搜题
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搜题
【简答题】
求下列图形阴影部分的面积．
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】从商品类型表和商品表中查询化妆品的商品编号和商品名称。
A.
select shopid , shopname from shoptype inner join shop where shoptypename = '化妆品'
B.
select shopid , shopname from shoptype left join shop on shoptype . shoptypeid = shop . shoptypeid where shoptypename = '化妆品'
C.
select shopid , shopname from shoptype inner join shop on shoptype . shoptypeid = shop . shoptypeid where shoptypename = '化妆品'
D.
select shopid , shopname from shoptype right join shop on shoptype . shoptypeid = shop . shoptypeid where shoptypename = '化妆品'