DataFrame对象可以很方便的从各种常见格式文件中导入数据，也可以方便的将数据导出，生成各种文件。将DataFrame对象保存至excel中的方法为： A: read_excel B: to_excel C: save_excel D: from_excel

What is a feature of the Integration Framework?（） A: Allow bulk importing of XML or flat files.  B: Allow bulk importing from Excel spreadsheets. C: Allow bulk importing from external/legacy system. D: Allow bulk importing from one database platform to another.

Translate the following sentences from Chinese into English.你知道约翰这次失败的原因吗？他在中学里几乎全优。(lead to, failure, excel in)

Ifyouknowthetwosentencesaredifferent_____eachother,youhadbettertellusthedifference_____them. A: between;from B: from;between C: from;from D: from;with

This messagecomes to us from many_____: from school, from parents, even from politicalfigures referring to “traditional values”.

Bob is quite different ______ he was in school. A: from that B: from with C: from which D: from when

The culture ______Tang Dynasty. A: hears from B: dates from C: keeps from D: knows from

Chocolate ______ cocoa beans. A: grows from B: made from C: comes from D: produces from

Information obtained from libraries is sooner forgotten than . A: it from life B: that from life C: what from life D: which from life

Where do the “borrowed items” come from? A: From parents B: From would-be husband C: From siblings D: From a happily married friend