填空题The two words in each pair below are similar in meaning.
Answer the questions to explain the difference between them.
Which one uses a product or service and which one buys it?
a customer buys a product a consumer uses a
product.
填空题
Which one is general and which is specific?
competition ______
competitor ______
填空题
Which one means to make something different and which means to make a contribution?
to differentiate ______
to make a difference ______
填空题
Which one emphasises saving time and money and which one emphasises results?
effectiveness ______
efficiency ______
填空题
Which means to reach the same level and which means to stay at the same level?
catch up with ______
keep up with ______
填空题
Which means to keep hold of and which means to keep up?
to sustain ______
to retain ______
填空题
Both give you rights, but which one is like a copyright?
a patent ______
a licence ______