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【判断题】
接是指专门用来接收直接雷击的金属物体。A.
正确
B.
错误
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【单选题】回溯法求解0-1背包问题时,第i层的左儿子是否可行所用约束函数为( )。
【简答题】口腔扁平苔藓的典型病理表现为 ________、 ________ 、及____________。
【判断题】You will always hear 2 speakers in Section 1, and they will have an everyday conversation.
A.
正确
B.
错误
【单选题】Section A Directions: In this section, you will hear three conversations. At the end of each conversation, you will hear one question. Both the conversations and the questions will be spoken only once...
A.
The teacher always gets angry at this students for not doing her homework.
B.
It is unusual for the students not to do her homework.
C.
The student gets to do her homework all the time.
D.
The student has a lot of homework to make up.
相关题目：
【单选题】回溯法求解0-1背包问题时,第i层的左儿子是否可行所用约束函数为( )。