By describing news as "machine-gunning with scraps", the author means______.
A. much of the news contains gun-fighting scenes
B. much of the news program is only a rapid broadcast of unrelated bits of information
C. news programs are repeated too frequently on the screen
D. news programs can't capture and hold viewers' attention
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天然抗肿瘤药
博来霉素
A. 丝裂霉素C
B. 阿霉素
C. 长春新碱
D. 紫杉醇
履行费用的负担不明确的,由权利方和义务方平均承担。()
A. 正确
B. 错误
根据有关规定,施工合同的估算价在()万元人民币以上,必须进行招标。
A. 10
B. 50
C. 100
D. 200