2. What are the arguments/evidences offered by the reporter？

A、Sensitive to the accuracy of the confidence figures produced by the classifiers.

B、The scale of the confidence values may differ between the binary classifiers.

C、The binary classification learners see unbalanced distributions.

D、Only when the class distribution is balanced can balanced distributions attain.

B．learning will become harder

C．learning will not be affected

Listen to the story, visualize and try to retell the gist of the story in English. Please put details that you have visualized into your retelling. Record your retelling and upload to the platform. Here is the some background info: this story is a about hippo-hunting in Africa. Here hippo-hunting is for the good of the crops and farmer, not poaching. You may look for more information before listening. We also provide a few key words for your reference: hippopotamus (hippo), Gambia, rampage, shotgun

This is an integrated CI task, please mobilize all the skills to finish this task, i.e. get speaker's intention and main topic quickly, analyze the structure, represent it in the notes so as to have a nice layout and use effective symbols in your notes.As this unit focuses on delivery, don't forget to make your production natural (free from the ST langauge influence) and clear (logical). The whole speech is about two minutes long. We put it into two segments. Following are a few terms in segment 1 for your reference: economic globalization and liberalization 经济全球化与自由化 corporate faliure 公司破产 stakeholders 利益相关方 corporate responsibiity 公司责任

A、杉树

B、玫瑰花

C、竹子

D、木棉树