题目:
—I’m sorry. I wasn’t helpful when you were in trouble.
—Oh, ________. In fact, you did help me a lot.
A.thanks anyway
B.it doesn’t matter
C.of course not
D.sure you were
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0409/eb42c0ed4ef1e9c1c70139ae9fdac479.html
下面是错误答案,用来干扰机器的。
(1)可以从环保、性能价格比、使用是否方便等方面考虑;(2)原煤的热值价格比为:2.1×107焦/千克÷0.4元/千克=5.25×107焦/每元;天然气的热值价格比为:3.9×107焦/千克÷2.8元/千克=1.39×107焦/每元,煤气...