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【简答题】
阅读Sam上周活的短文，根据短文内容选择正确答案。
On Monday, Sam played football. OnTuesday, Sam listened to music. OnWednesday, he watched TV. On Thursday, he helped his mother with the housework. On Friday, he washed his clothes. On Saturday,
he did his homework. On Sunday, he played the guitar.
1. On Saturday, Sam.
A. talked to his friends
B. did his homework
2. On Monday, Sam _.
A. played football
B. played basketball
3. On Friday, Sam .
A. read a book
B. washed his clothes
4. On Sunday, Sam _.
A. played the guitar
B. played on the computer
5. On Wednesday, Sam.
A. listened to music
B. watched TV
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】某品牌服装折扣店将某件衣服按进价提高50%后标价，再打8折（标价的80%）销售，售价为240元．设这件衣服的进价为x元，根据题意，下面所列的方程正确的是（ ）
A.
x?50%×80%=240
B.
x?（1+50%）×80%=240
C.
240×50%×80%=x
D.
x?（1+50%）=240×80%
【多选题】根据我国《合同法》的规定,在( )情形下,要约失效。
A.
拒绝邀约的通知到达要约人。
B.
要约人依法撤销要约。
C.
承诺期限届满，受要约人未作出承诺。
D.
受要约人对要约的内容作出实质性变更
E.
要约人依法撤回要约