A recent study graded more than 600 internet retailers on how easy it was for consumers to shop, buy, and pay.
最近的一项研究对600多家网络零售商进行了评分,评估消费者购物、购买和支付的便利程度。
Bill Hunt,a professor of Biology and Agricultural Engineering at North Carolina State University, has developed an easy-to-use computer model to predict how landscape impacts water pollution.
VOA: standard.2010.08.04
What did you learn about how easy or hard it is to keep track of what food intake is?
你从记录食物摄入过程中,学到了什么,记录饮食是难是易
I want to show you how easy it is to change the code. But, notice, once I've added this I actually have a problem. This is now an under-constrained problem. I have more unknowns than I have equations.
我加上这个条件后,我马上面临一个问题了,这就是现在是一个非约束性问题了,我的未知数比方程数多,你从代数中可以知道。
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