皮皮学，免费搜题
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搜题
【单选题】
下列何者属于腹膜内位器官(单选题)A.
子宫
B.
肾上腺
C.
脾
D.
胆囊
E.
降结肠
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】When he the door, he found his keys were nowhere. 21 A. would open B.opened C. had opened D. wasto open 21
【单选题】When he hurried to the airport, he found, to his great disappointment, his ticket and passport______at home.
A.
had been left
B.
have been left
C.
has been left
D.
had left