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【单选题】
假设“学生一选课一课程'数据库中有以下3个关系: S(S#,SNAME,SEX,AGE,DEPARTMENT),主码是S# C(C#,CNAME,TEACHER),主码是C# SC(S#,C#,GRADE),主码是(S#,C#) 要查询学生姓名及其所选修课程的课程号和成绩,正确的SQL语句是( )。
A.
SELECTS.SNAME,SC.C#,GRADE FROM S WHERE S.S#=SC.S#
B.
SELECT S.SNAME,SC.C#,GRADE FROM SC WHERE S.S#==SC.S#
C.
SELECTS.SNAME,SC.C#,GRADE FROM S,SC WHERE S.S#=SC.S#
D.
SELECT、S.SNAME,SC.C#,GRADE FROM S,SC WHERlE S.S#=SC.C#
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举一反三
【单选题】In "I felt compelled to defend on his behalf, a bit too heatedly as I raised my voice above the noise of the kitchen." [para. 9], "heatedly" can be best explained as ___________.
A.
warm-heartedly
B.
angrily
C.
critically
D.
anxiously
【单选题】一切商品形式的秘密都隐藏在
A.
简单的或偶然的价值形式中
B.
总和的或扩大的价值形式中
C.
一般的价值形式中
D.
货币形式中
【单选题】How many lies do we hear every day?
A.
1-5
B.
5-9
C.
10-200
D.
over 200
【单选题】商品价值形式的发展经历了简单的或偶然的价值形式、总和的或扩大的价值形式、一般的价值形式以及货币形式四个阶段。货币的本质是( )
A.
商品的等价物
B.
商品交换的媒介物
C.
固定地充当一般等价物的商品
D.
商品相对价值形式
【简答题】Final Check A. Ads That Lie Read the following paragraphs carefully. Then fill in each blank with a word from the box. Use each word once. conclusion s .protect talent Every day of ...
【简答题】I raised my voice to make myself _________________( hear)
【简答题】When I was young, I really doubted whether there was love between my parents.Every day they were busy earning money so that they could 36 the high tuition my brother and I needed.They didn’t 37 in the...
【多选题】商品价值形式的发展所经历的阶段有( )
A.
简单的或偶然的价值形式
B.
总和的或扩大的价值形式
C.
一般的价值形式
D.
货币形式
【单选题】I raised my voice________.
A.
so that I could hear
B.
in order to hear others
C.
so as to hear myself
D.
in order to be heatd
【单选题】下列给出的赋值语句中正确的事是
A.
1=i
B.
-M=M
C.
M=-M
D.
x+y=0
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