题型：填空题 下列词语中加粗的字，每对读音都不相同的一组是[ ]A．肄业／酒肆 荟萃／精粹 着实／着魔 B．馈赠／匮乏 冀望／羽翼 刹那／刹车 C．缔造／谛听 箴言／缄默 伺候／窥伺 D．慑服／蹑足 沙砾／闪烁 开拓／拓片 查看答案
题型：填空题 用所给动词的适当形式填空。 In many countries, 1_____(smoke) is becoming a bigger problem for young people. Most smokers2_____ (start) in their teens (years of a person's age from 13 to 19 ) or even earlier. A study of 8,000 Beijing students last May 3_____(show) us that smoking was a problem for manyChinese kids. More than 21% of middle school students and 6% of primary school pupils(小学生)said they had smoked. "If young people start 4_____(smoke) early, they will probably get addicted to nicotine (对尼古丁瘾).And it 5_____ (be) very hard to give up弃) later on," said a professor. Every year, about 4 million(百万) people die (死亡) of smoking. And if people keep 6_____(smoke), that number will go up to about 10 million a year by 2030, the World Health Organization (WHO, 世界卫生组织) says. So we have to 7_____(know) and tell others about the dangers(危险)of smoking. Everyone of us should 8_____(do) something useful to stop kids from 9_____(smoke), or one day we 10_____(see) what we won't see. 查看答案
题型：填空题 如右图，一带电液滴在重力场和水平方向匀强电场的作用下，从静止开始由b沿直线运动到d，且bd与竖直方向所夹的锐角为45°，则下列结论正确的是:A．此液滴带负电B．液滴的加速度等于C．合外力对液滴做的总功等于零D．液滴的电势能减少 查看答案
