根据脱硫产物的用途脱硫工艺可分为抛弃法和回收法。
参考答案：对
.The Red Army ____ more than 25,000 li and arrived at North Shanxi at last.
A．walked
B．ran
C．covered
D．travel
电网互联形成大电网初期的突出问题有哪些？
