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【单选题】
对于P型半导体来说,以下说法正确的是()
A.
电子为多子
B.
空穴为
C.
能带图中施主能级靠近带底
D.
能带图中受主能级靠近于价带顶
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参考答案:
举一反三
【简答题】The boy ____________ is playing ping-pong is my classmate. 2. The e-mail ___________ I received yesterday was from my sister. 3. I hate people ______________ talk much but do little. 4. The car ______...
【简答题】What's the coolest kind of transportation ( 交通 ) for middle school students back from winter holidays? A racing bike? A car? No, it's a special kind of shoes called Heelys ( 暴走鞋 ). Heelys look just li...
【简答题】We are dancing in the living room. Just the two of us. I'm the one in the blue jeans and T-shirt, getting ready for work. He's the little guy in my arms, almost three, still in his gold pajamas with t...
【单选题】五级民航乘务员需连续从事本职工作()年以上,经本职业四级正规培训达规定标准学时,并取得结业证书可称为四级民航乘务员。
A.
1
B.
2
C.
3
D.
4
【单选题】粘 土矿物的基本构造单元是 。
A.
硅氧四面体和铝氧八面体
B.
硅氧四面体片和铝氧八面体片
C.
硅氧八面体和铝氧四面体
D.
硅氧八面体和铝氧四面体
【简答题】皮亚杰对幼儿道德判断发展阶段是怎样划分的。
【简答题】What's the coolest kind of transportation for middle school students back from the winter holidays?A racing bike?A car?No,it's a special 1 of shoes called Heelys(暴走鞋).Heelys look just like common 2 sh...
【简答题】His car is just like ___. (her)
【简答题】A racing bike? A car? No , it's a special kind of shoes called Heelys . Heelys looks just like ordinary sports shoes , but they have a wheel( 轮子 ) in the heel( 鞋跟 ) . So instead of walking , kids can ...
【单选题】五级民航乘务员需连续从事本职工作( )年以上,经本职业四级正规培训达到标准学时,并取得结业证书课程为四级民航乘务员。
A.
1
B.
2
C.
3
D.
4
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