【单选题】2020年第____届现代奥运会将在_______举行。( )
【单选题】What is the difference between data lakes and data warehouses?
A.
Data lakes utilize hierachical systems while data warehouses use object storage.
B.
Data lakes contain only files while data warehouses contain only databases.
C.
Data lakes house raw data while data warehouses contain pre-formatted data.
【简答题】The data ______ includes the function of updating data on a database, and retrieving data from a database. A.management B.storage C.ysis D.Communication A. B. C. D.
【单选题】有如下类的定义: class TestClass { public: TestClass(int _data): data(_data) { } void set(int _data) { _______________________ } int get() const { return data; } private: int data; }; 则以下横线位置处的代码 不正确 的是 ( ...
B.
TestClass::data = _data;
【单选题】散装种子饼属于IMSBC中具有化学危险性固体散装货物的()