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【单选题】
结构化程序的三种基本结构是A.
递归、迭代和回溯
B.
过程、函数和子程序
C.
顺序、选择和循环
D.
调用、返回和选择
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
【单选题】She her sick dog for two whole days, and she found it in the animal center at last.
A.
looked after
B.
looked over
C.
looked for
D.
looked up
【简答题】幼儿园班级管理的方法
【单选题】When she was doing the cleaning yesterday, Mum found the ring that she _____ years ago.
A.
loses
B.
has lost
C.
lost
D.
had lost
【简答题】She felt badly about losing the ring which her parents had given her for her nineth A B C D birthday.
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