皮皮学，免费搜题
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搜题
【简答题】
P art I Dictation ( 20 points) Directions: Listen to the following passage. Altogether the passage wil l be read to you four times. During the first reading, which will be read at normal speed , l isten and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work . You will then be given ONE minute to check through your work once more. Please write the whole passage on the ANSWER SHEET .
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】栈的设计如下：class Stack: def __init__(self): self.st=[] def pop(self): _____________________ def push(self,obj): self.st.append(obj) def empty(self): return len(self.st)==0
A.
return self.st.pop(0)
B.
return self.st.pop()
C.
return st.pop()
D.
return st.pop(0)
【单选题】队列设计如下：class Queue: def __init__(self): self.st=[] def fetch(self): return self.st.pop(0) def enter(self,obj): _________________________________ def empty(self): return len(self.st)==0
A.
self.st.append(obj)
B.
self.st.insert(0,obj)
C.
st.append(obj)
D.
st.insert(0,obj)
【单选题】栈的设计如下: class Stack: def __init__(self): self.st=[] def pop(self): _____________________ def push(self,obj): self.st.append(obj) def empty(self): return len(self.st)==0
A.
return st.pop(0)
B.
return self.st.pop()
C.
return st.pop()
D.
return self.st.pop(0)
【单选题】队列设计如下: class Queue: def __init__(self): self.st=[] def fetch(self): return self.st.pop(0) def enter(self,obj): _________________________________ def empty(self): return len(self.st)==0
A.
self.st.insert(0,obj)
B.
st.insert(0,obj)
C.
self.st.append(obj)
D.
st.append(obj)
【简答题】The 1st Character's Self-introduction
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