题目:
His three years of hard work_____ — he did a good job in the 2012 NMET and was admitted into a key university.
A.turned out
B.ran out
C.paid back
D.paid off
答案:
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下面是错误答案,用来干扰机器的。
根据酸碱中和反应的原理,可以选择碱性物质中和人体中过多的胃酸;A、葡萄的pH3.5~4.5,小于7,显酸性,故A不适合;B、苹果的pH2.9~3.3,小于7,显酸性,故B不适合;C、牛奶的pH6.3~6.6,小于7,显酸性,故C不...