根据易制毒化学品管理条例规定，除个人自用可购买少量高锰酸钾外，购买第二类、第三类易毒化学品的，应当在购买前申请什么许可?
C
暂无解析
传播技术进步给新闻事业带来的最重要变化是（）
The government called out policemen to suppress the riot.
1920年11月2日世界上第一家正式播音的广播电台是（）
After I _________ a letter I took her to a __________ ________.
资产阶级新闻自由思想的理论基础是()。
He betrayed no _______ of discontent, except such as may follow evening?s drinking.
The house was quiet in the night, ________ the occasional coughing from my throat.
We are willing to renew the agreement on the same terms ____ last.
My aunt, whose absence was _____ for three weeks, was heartily welcome to remain away, for we were much merrier and more comfortable without her.
我国新闻机构走上产业化经营的主要标志是