(a+3)(3﹣a)=( ).
9﹣a2
________the novel by Mr Smith, the movie is popular with the people in Asia. [ ]
A. Base on
B. Based on
C. Basing on
D. Being based on
梦魇
A.发作性暴食,食后采取呕吐、导泻或禁食来阻止发胖B.通过节食,自我诱发呕吐,过度运动达到体重减轻,存在害怕发胖的超价观念C.自我诱发的反复呕吐,呕吐物为刚进的食物,体重保持在正常体重的80%以上D.发生于睡眠的前1/3阶段,伴尖叫,哭喊,惊恐,醒后不能回忆,多见于儿童E.睡眠时有噩梦,有强烈的梦境体验,伴情绪紧张、心悸等,见于任何年龄