未知题型 The word 'affect' in Paragraph 6 could be best replaced by ______.A.influenceB.effectC.stopD.present

未知题型 In Reiner's opinion，______should be held mainly responsible for smoking scenes in movies.A.bossesB.actorsC.directorsD.screenwriters

单项选择题 两只额定电压相同的灯泡,串联在适当的电压上,则功率大的灯泡( )。A. 发热量大B. 发热量小C. 与功率较小的发热量相等D. 不确定