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【单选题】
在数据库设计中，E-R模型是进行( )的一个主要工具
A.
需求分析
B.
概念设计
C.
逻辑设计
D.
物理设计
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参考答案：
举一反三
【单选题】三极管的电极E表示
A.
基极
B.
集电极
C.
发射极
D.
正极
查看完整题目与答案
【单选题】【D6】 SPEAKER A: DO YOU KNOW BEIJING OPERA? SPEAKER B: OF COURS E. 【D5】______ SPEAKER A: CAN YOU INTRODUCE BEIJING OPERA TO ME? I WANT TO KNOW SOMETHING ABOUT IT. SPEAKER B: WELL, THE PLOT OF A BEIJING...
B.
WHY NOT GO WITH ME JUST TONIGHT?
C.
I WAS BORN IN BEIJIN G.
D.
I AM INTERESTED IN BEIJING OPERA.
查看完整题目与答案
【单选题】【D5】 SPEAKER A: DO YOU KNOW BEIJING OPERA? SPEAKER B: OF COURS E. 【D5】______ SPEAKER A: CAN YOU INTRODUCE BEIJING OPERA TO ME? I WANT TO KNOW SOMETHING ABOUT IT. SPEAKER B: WELL, THE PLOT OF A BEIJING...
B.
WHY NOT GO WITH ME JUST TONIGHT?
C.
I WAS BORN IN BEIJIN G.
D.
I AM INTERESTED IN BEIJING OPERA.
查看完整题目与答案
【单选题】【D7】 SPEAKER A: DO YOU KNOW BEIJING OPERA? SPEAKER B: OF COURS E. 【D5】______ SPEAKER A: CAN YOU INTRODUCE BEIJING OPERA TO ME? I WANT TO KNOW SOMETHING ABOUT IT. SPEAKER B: WELL, THE PLOT OF A BEIJING...
B.
WHY NOT GO WITH ME JUST TONIGHT?
C.
I WAS BORN IN BEIJIN G.
D.
I AM INTERESTED IN BEIJING OPERA.
查看完整题目与答案
【单选题】在三极管的三个电极中, C 表示的是三极管的( )极。
A.
、发射极
B.
、基极
C.
、正
D.
、集电极
查看完整题目与答案
【单选题】三极管的电极C表示
A.
基极
B.
集电极
C.
发射极
D.
正极
查看完整题目与答案
【判断题】M8020是加减运算的零标志位。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】三极管的三个电极中c表示
A.
集电极
B.
基极
C.
发射极
查看完整题目与答案
【单选题】After that, we studied, and, _______________ , we had dinner in a famous café on the main street, Cours Mirabeau.
A.
first
B.
finally
C.
When
查看完整题目与答案
【简答题】在阳光照射下绿色植物进行光合作用，吸收二氧化碳，放出氧气．我校某兴趣小组打算到小坝某农户的密封的塑料大棚内收集空气样品进行实验探究，我们应该如何收集大棚内的空气样品呢？现有备选器材：集气瓶、玻璃片、橡皮管、玻璃导管、盛满水的水槽、饮料管、试管、橡胶塞、带针帽的注射器、带盖的矿泉水瓶、塑料口袋等（说明：任意选其中的某些仪器或材料，写出一种收集空气样品的正确方法）．
查看完整题目与答案
相关题目：
【单选题】三极管的电极E表示
A.
基极
B.
集电极
C.
发射极
D.
正极
查看完整题目与答案
【单选题】【D6】 SPEAKER A: DO YOU KNOW BEIJING OPERA? SPEAKER B: OF COURS E. 【D5】______ SPEAKER A: CAN YOU INTRODUCE BEIJING OPERA TO ME? I WANT TO KNOW SOMETHING ABOUT IT. SPEAKER B: WELL, THE PLOT OF A BEIJING...
B.
WHY NOT GO WITH ME JUST TONIGHT?
C.
I WAS BORN IN BEIJIN G.
D.
I AM INTERESTED IN BEIJING OPERA.
查看完整题目与答案
【单选题】【D5】 SPEAKER A: DO YOU KNOW BEIJING OPERA? SPEAKER B: OF COURS E. 【D5】______ SPEAKER A: CAN YOU INTRODUCE BEIJING OPERA TO ME? I WANT TO KNOW SOMETHING ABOUT IT. SPEAKER B: WELL, THE PLOT OF A BEIJING...
B.
WHY NOT GO WITH ME JUST TONIGHT?
C.
I WAS BORN IN BEIJIN G.
D.
I AM INTERESTED IN BEIJING OPERA.
查看完整题目与答案
【单选题】【D7】 SPEAKER A: DO YOU KNOW BEIJING OPERA? SPEAKER B: OF COURS E. 【D5】______ SPEAKER A: CAN YOU INTRODUCE BEIJING OPERA TO ME? I WANT TO KNOW SOMETHING ABOUT IT. SPEAKER B: WELL, THE PLOT OF A BEIJING...
B.
WHY NOT GO WITH ME JUST TONIGHT?
C.
I WAS BORN IN BEIJIN G.
D.
I AM INTERESTED IN BEIJING OPERA.
查看完整题目与答案
【单选题】在三极管的三个电极中, C 表示的是三极管的( )极。
A.
、发射极
B.
、基极
C.
、正
D.
、集电极
查看完整题目与答案
【单选题】三极管的电极C表示
A.
基极
B.
集电极
C.
发射极
D.
正极
查看完整题目与答案
【判断题】M8020是加减运算的零标志位。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】三极管的三个电极中c表示
A.
集电极
B.
基极
C.
发射极
查看完整题目与答案
【单选题】After that, we studied, and, _______________ , we had dinner in a famous café on the main street, Cours Mirabeau.
A.
first
B.
finally
C.
When
查看完整题目与答案
【简答题】在阳光照射下绿色植物进行光合作用，吸收二氧化碳，放出氧气．我校某兴趣小组打算到小坝某农户的密封的塑料大棚内收集空气样品进行实验探究，我们应该如何收集大棚内的空气样品呢？现有备选器材：集气瓶、玻璃片、橡皮管、玻璃导管、盛满水的水槽、饮料管、试管、橡胶塞、带针帽的注射器、带盖的矿泉水瓶、塑料口袋等（说明：任意选其中的某些仪器或材料，写出一种收集空气样品的正确方法）．
查看完整题目与答案
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