皮皮学，免费搜题
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【单选题】
一项工程，甲单独做，6天可完成；甲乙合做，2天可完成；则乙单独做，（ ）天可完成。A.
1.5
B.
3
C.
4
D.
5
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】On which day do British usually visit friends and relatives?
A.
On 26th, December.
B.
On 25th, December.
C.
On 24th, December.
D.
On 27th, December.
【简答题】If A=-25,B=abs(A),then sqrt(B)=(_);
【单选题】Why did John send for Dr. White?
A.
Because the master was ill.
B.
Because the master's wife was ill.
C.
Because the master wanted to invite Dr. White for dinner.
【单选题】When did the girl come back for America?
A.
On July 5th.
B.
Oh July 6th.
C.
On August 25th.
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