皮皮学，免费搜题
登录
搜题
【判断题】
数据处理大致分为三部分：导入数据、查看数据、数据清洗。其中，导入数据就是数据预处理部分。A.
正确
B.
错误
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】Gross domestic product is a measure of the total value of all
A.
sales in an economy over a period of time.
B.
consumer income in an economy over a period of time.
C.
capital accumulation in an economy over a period of time.
D.
final goods and services produced in an economy over a period of time.
【简答题】-7，﹢24，0，﹢22，-1，-102
【单选题】According to usual practice, the penalty of a contract shall not exceed of the total value of the goods.
A.
3%
B.
4%
C.
5%
D.
5.5%
【单选题】( )is the difference in value between the total value exports and total value imports of a nation during a specific period of time.
A.
Balance of trade
B.
Trade surplus
C.
Trade deficit
D.
Trade balance
相关题目：