随变质作用的加深，碳含量不断提高，一直到高变质的无烟煤，因此变质作用的整个过程是增加碳含量的过程。所以，煤的变质作用又可以说是增碳作用。
参考答案：对
解释下列词语。
奚落：_________________________________________
决一雌雄：_________________________________________
贻笑大方：_________________________________________
肇事：_________________________________________
颠三倒四：_________________________________________
佯作：_________________________________________
罕见：_________________________________________
虚张声势：_________________________________________
狼心狗肺：_________________________________________
力挽狂澜：_________________________________________
The woman said her lost handbag_______ more than 2,000 dollars, which turned out to be a lie later.
A．included
B．contained
C．kept
D．owned
