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【简答题】
读下面程序，在其中的空处添上适当内容。该程序完成了什么功能？程序运行后，变量RS的值是多少？
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】有白、黄、粉3种颜色的3个宠物小屋。小花猫钻进了其中一个小屋。小兰问究竟在哪儿。奶奶说:“在白色小屋里。”爸爸说:“不在黄色小屋里。”妈妈说:“不在白色小屋里。” 如果3个人说的话只有一句话是真的,请问究竟在哪个屋子里?
A.
在白色小屋里
B.
在粉色小屋里
C.
在黄色小屋里
D.
不在黄色小屋里
【多选题】not... until, get everything ready, he, for the experiment, leave, the lab, Xiao Wang
A.
It was not until he got everything ready for the experiment that Xiao Wang left the lab.
B.
It was not until he got everything ready for the experiment which Xiao Wang left the lab.
C.
It was not until he got everything ready for the experiment when Xiao Wang left the lab.
D.
It was Xiao Wang who did not leave the lab until he got everything ready for the experiment.
【单选题】听力原文：W: Can we leave the lab now, teacher? M: No, you must tidy the lab before you leave. When can the student leave?
A.
The student can't leave unless he has put everything back in the cupboard.
B.
The student can leave after he turns off the electricity.
C.
The student can leave after he has tidied the lab.
【单选题】Before you leave the lab, the doors and windows ____shut in case of rain.
A.
is
B.
are
C.
is to be
D.
are to be
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