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【简答题】
有订单表orders(oid,odate,cid), 其中oid是订单号，odate是订单日期，cid是客户编号； 订单详细信息表orderitems(oid,pid,quantity);其中pid是商品编号，quantity是数量。 查询购买商品编号为“101”商品的顾客编号及订单日期。SQL语句为（ ） A. select cid,odate from orders where oid in (select oid from orderitems where pid='101'); B. select cid,odate from orders where oid all (select oid from orderitems where pid='101'); C. select cid,odate from orders where oid any (select oid from orderitems where pid='101'); D. select cid,odate from orders where oid (select oid from orderitems where pid='101');
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反馈参考答案：
举一反三
【简答题】违反;违抗,不服从
【多选题】吸痰操作中错误的方法是（）
A.
检查机器、吸气管、排气管不能安装错误
B.
吸痰盘应每周更换2次
C.
小儿吸痰时，痰管要细，吸力宜小
D.
贮痰瓶内吸出液不宜过满
E.
经鼻吸痰的痰管可多次使用
【简答题】vt. 1 happen in a way that is different from what usu. happens or what you expect 违反2 refuse to obey sb. or sth. 违抗;不服从
【简答题】I am a professor of sports and exercise so I often deal with nervousness in my research with sports people. Actually, most people experience nervousness at some time or another. If you are feeling anx...
【单选题】B， Dear Alice， You really have two different questions here，so we'll discuss them one at a time． Your problems at school may be a result of a number of things． You don，t say much about how these class...
A.
lucky
B.
unkind
C.
silly
D.
unhappy
【简答题】阅读理解。 I am a professor of sports and exercise so I often deal with nervousness in my research with sports people. Actually, most people experience nervousness at some time or another. If you are feeli...
【简答题】阅读下列短文，根据短文内容填写表格 (每空限填一词)。 How to beat sadness We all have days when we are down, tired and unhappy. That’s OK. You need days like this, or how would you know you are happy? You’ll enjoy your good da...
【简答题】清楚明确的,直截了当的 咨询,请教 经营过程,管理过程 处理,对付 违反,违抗,不服从
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