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搜题
【单选题】
When his father stayed on at the shop after closing time, the following happened EXCEPT that
A.
his father returned home very late and ate what had been set aside for him.
B.
his mother sent him several times to the shop to see if he could call his father home.
C.
his father came home and ate the night time meal with him and his mother.
D.
his father slept for a short while before he got up when the cock crowed.
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举一反三
【单选题】半导体中,参与导电的载流子有( )。
A.
电子
B.
空穴
C.
电子和空穴
D.
不能确定
【简答题】你能看懂燃油泵及喷油器控制电路么?如果看不懂是因为什么?
【单选题】有理数m,n在数轴上的位置如图示,则下列关系式中正确的个数 [     ]
A.
1个
B.
2个
C.
3个
D.
4个
【简答题】你能看懂燃油泵及喷油器控制电路么?如果看不懂主要是哪里看不懂?
【简答题】用27吨甘蔗可以制成3.42吨糖。制1吨糖需要多少吨甘蔗?(得数保留两位小数)
【多选题】半导体中有( )参与导电。
A.
电子载流子
B.
空穴载流子
C.
束缚电子
【简答题】locke argues that ___ unites actions into the same person.
【单选题】旅游景区的质量等级划分为等级。
A.
3个
B.
4个
C.
5个
D.
6个
【简答题】用27吨甘蔗可以制成3.42吨糖。平均1吨甘蔗能制成多少吨糖?(得数保留两位小数)
【简答题】n. 手机用户