皮皮学，免费搜题
登录
搜题
【单选题】
从经济性质看，义务教育可看()A.
私人产品
B.
混合产品
C.
准公共产品
D.
纯公共产品
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】This is one of the highest buildings that ______ in this city.
A.
has ever been built
B.
is ever built
C.
has ever built
D.
was ever built
【单选题】下列哪一种说法是不恰当的？（）
A.
电子商务安全性是要求系统提供一种端到端的安全解决方案，以防止窃取、篡改、病毒和入侵等不安全行为
B.
电子商务的集成性表现在事务处理的整体性和统一性
C.
客户服务不受时间、空间的限制，从而实现周全的服务内容和良好的服务质量是电子商务服务性的特点
D.
电子商务的可扩展性是指电子商务的应用范围可不断扩大
【单选题】The teacher asked the students to make their own ______in pairs. They can talk about anything they like. [ ]
A.
minds
B.
conversations
C.
words
D.
opinions
【单选题】This is one of the bridges that__in this city.
A.
has been built
B.
have been built
C.
were built
D.
was built
【简答题】This hotel is one of the highest____in the big city.(build)
相关题目：