[单选题]A company predicted that the learning rate for production of a new product would be 80%. The actual learning rate was 75%. The following possible reasons were stated for this:

正确答案 ：G

(i) only

解析：

The learning rate was actually better than expected and only (i) could cause it to improve.

[单选题]19 What is the company’s return on shareholders’ equity?

正确答案 ：C

15/100 = 15%

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