[单选题]14 Alpha buys goods from Beta. At 30 June 2005 Beta’s account in Alpha’s records showed $5,700 owing to Beta.

Beta submitted a statement to Alpha as at the same date showing a balance due of $5,200. Which of the following could account fully for the difference?

正确答案 ：D

Beta has issued a credit note for $500 to Alpha which Alpha has not yet received.

[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.

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