【单选题】V 带传动中,选取V带型号主要取决于 。
【判断题】Mass media may take the form of broadcast media, print media and Internet media.
【单选题】四川三星堆青铜像是在我国哪个时期制作的()
【多选题】Print media include:______
【单选题】I have been convinced that the print media are usually more __________ and more reliable than television.