皮皮学，免费搜题
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搜题
【简答题】
(Letter 1) 1 How did Frank feel about his daughter? (Letter 2) 2 What did Frank think of the invasion and fighting ahead? (Letter 3) 3 How long had Frank and Polly not seen each other? (Letter 4) 4 Where was Polly going to take her daughter Dee to? (Letter 5) 5 How did Polly imagine life after the war? (Letter 6) 6 How did Polly feel as the moon shone on her?
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】下列运用平方差公式计算，错误的是（ ）
A.
（a+b）（a-b）=a 2 -b 2
B.
（x+1）（x-1）=x 2 -1
C.
（2x+1）（2x-1）=2x 2 -1
D.
（-a+b）（-a-b）=a 2 -b 2
【单选题】下列运用平方差公式计算，错误的是（ ）
A.
（x+1）（x-1）=x 2 -1
B.
（a+b）（a-b）=a 2 -b 2
C.
（2x+1）（2x-1）=2x 2 -1
D.
（-a+b）（-a-b）=a 2 -b 2
【单选题】Please remember ___________ the letter for me on your way to the supermarket.
A.
to post
B.
post
C.
posting
【简答题】Chapter 1
【简答题】论述疲劳的规律以及减轻疲劳的措施
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