策划书文本写作的行文技巧是() ["明确的标题","短小的段落","明确的序号","多用代名词","多用长句"]
直接邮寄媒介的特征有() ["灵活性强","受众有高度的可选择性","成本高","展露时间长","同一媒体内无广告竞争"]
冼星海,()人,我国著名的人民音乐家。代表作有歌曲《黄河大合唱》《到敌人后方去》《在太行山上》《游击军》等500多首、交响曲()等。
1大卡的热量是指使()公斤水温度升高(或降低)1℃所吸收(或放出)热量. ["1","1.5","2","5"]
杂志媒介的局限性是() ["保存时间","时效性","复制质量","声誉"]
华彦钧,我国民间音乐家,又名(),()人。代表作有琵琶曲()等。