In a survey of 63 people, 23 people subscribed to magazine A, 21 people subscribed to magazine B, and 17 subscribed to magazine C. For any two of the magazines, 4 people subscribed to both magazines but not to the third magazine. If 18 people in the survey did not subscribe to any of the three magazines, how many people subscribed to all three magazines?

[判断题]运杂费指设备由厂家运至安装现场所发生的一切运杂费用。

[单选题]有关挤压伤，下列哪项是错误的（）

[单选题]选择培养基是

[单选题]平遥（　　）被誉为“东方彩塑艺术宝库”。

[单选题]标的资产均为1股A股票的两种欧式期权的执行价格均为30元，6个月到期，股票的现行市价为35元，看跌期权的价格为3元。如果6个月的无风险利率为4%，则看涨期权的价格为（　　）。

[多选题]抽样具有科学性的理由是（）。

[多选题]对混凝土试件的形状，下列说法正确的是（）。

[判断题]总结是一种比较灵活的机关经常使用的公开公文。

[单选题]下列风险中不属于系统性风险的是（）。

[问答题]哪些类型的家长比较难沟通？教师如何应对？

非专业可以考出版资格证书吗？有哪些报考条件？

关于BEC考试有哪些备考建议？

为什么要考BEC？

有哪些学习商务英语的好方法？

商务英语考试（BEC）难不难？

都说GRE考试难，那么它究竟难在哪？

什么是GRE考试？

雅思考试在即，如何快速备考？

说说雅思考试那些事

雅思5.5相当于CET几级的水平？

[单选题]In a survey of 63 people, 23 people subscribed to magazine A, 21 people subscrib...

[单选题]50% of the people（）for the survey were female.

[单选题]50% of the people（）for the survey were female.

[单选题]50% of the people（）for the survey were female.

[单选题]50% of the people（）for the survey were female.

[单选题]Just over 70% of people（）for the survey said the net had become essential.

[单选题]Just over 70% of people（）for the survey said the net had become essential.

[单选题]Just over 70% of people（）for the survey said the net had become essential.

[单选题]Just over 70% of people（）for the survey said the net had become essential.

[单选题]When people have no will to live, people are often very difficult to help.