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【单选题】
现有三个表即学生表S、课程表C和学生选课表SC，它们的结构如下：S(S#，SN，SEX，AGE，DEPT)； C(C#，CN)；SC(S#，C#，GRADE)。其中：S#为学号，SN为姓名，SEX为性别，AGE为年龄，DEPT为系别，C#为课程号，CN为课程名，GRADE为成绩。检索学生姓名及其所选修课程的课程号和成绩。正确的SELECT语句是（ ）。A.
SELECT S．SN，SC．C#，SC．GRADE FROM S WHERE S．S#=SC．S#
B.
SELECT S．SN，SC．C#，SC．GRADE FROM SC WHERE S．S#＝SC．GRADE
C.
SELECT S．SN，SC．C#，SC．GRADE FROM S，SC
D.
WHERE S．S#=SC．S# SELECT S．SN，SC．C#，SC．GRADE FROM S，SC
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举一反三
【单选题】When the immigration officer asks you the questions, you should _______.
A.
Be nervous and keep silent.
B.
Keep clam and give short answers.
C.
Excited and talk a lot to show your English ability.
D.
Ignore it.
【单选题】根管预备的注意事项中，哪一条是不正确的（）
A.
首先测定工作长度
B.
器械只能到达根尖狭窄部
C.
用根管钻或锉时应逐号进行
D.
每换一只器械前行根管冲洗
E.
根管应尽量扩大
【单选题】All masters，owners and agents（）that vessels when requesting Immigration and Port Health Clearance must anchor at the designated Immigration and Quarantine Anchorage and exhibit the appropriate signals...
A.
remind
B.
is reminded
C.
are reminded
D.
to remind
【单选题】My heart sank when the man at the immigration counter gestured to the back room. I'm an American born and raised,and this was Miami,where I live,but they weren't quite ready to let me in yet. 'Please ...
A.
she and her husband returned from Jamaica
B.
her name was similar to a terrorist's
C.
she had been held in Montreal
D.
she had spoken at a book event
【单选题】When was the immigration of Chinese laborers stopped?
A.
1882.
B.
1883.
C.
1884.
D.
1885.
【单选题】When the immigration officer asks you the questions, you should _______
A.
Be nervous and keep silent
B.
Keep clam and give short answers.
C.
Excited and talk a lot to show your English ability .
D.
Ignore him
【简答题】实验 11 微生物菌种的生理生化鉴定
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