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下表将工厂产品信息与进货门店信息共同存储,就该表中现存的数据,请简要分析该表会产生哪些数据修改问题 商品编号 商品名称 商品颜色 商品价格 进货数量 进货门店 门店地址 门店电话 79810 牛仔裤 蓝 156 50 上海路 上海路59# 787-091 80761 帽子 红 80 100 北京路 北京路20# 867-012 78901 裙子 白 500 10 南京路 南京路21# 123-098 78901 裙子 白 500 15 上海路 上海路59# 787-091
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【简答题】It was very cold last Sunday. Paul and his friends Allen, Bill and Betty went to the lake after breakfast. They began to skate on the ice. Paul skated better than his three friends. He skated fast and...
【单选题】It was last Sunday ______ we saw one of my old friends in the park.
A.
which
B.
that
C.
where
D.
who
【单选题】It was__last Sunday morning. It rained__.
A.
snowy, heavy
B.
snowing, heavy
C.
snowy, heavily
【简答题】测得工作在放大电路中某个晶体三极管的两个电极电流如图所示。 ( 1 )求另一个电极电流,并在图中标出实际方向。 ( 2 )判断它是 NPN 还是 PNP 型管,标出 E 、 B 、 C 极。 ( 3 )估算它的 β 。
【简答题】从方框中选择合适的选项完成短文。 Last Sunday My class went to the Central Zoo last Sunday. It was our first journey and we were all very happy. 1 Halfway to the zoo we stopped at a station because the driver of the b...
【单选题】如图所示电路中,测得工作在放大状态的某个晶体三极管两个电极电流,则第三个电极的电流大小、方向和管脚自左到右的顺序分别为( )。
A.
0.03mA,流进三极管:c、e、b
B.
0.03mA,流出三极管:c、e、b
C.
0.03mA,流进三极管:e、c、b
D.
0.03mA,流出三极管:e、c、b
【单选题】—What did you do last Sunday? —It was a hard Sunday. I ______ all day. [ ]
A.
watched TV
B.
went to the restaurant
C.
studied for my math test
D.
played computer games
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