【单选题】In 2001, R-rated films accounted for the majority of Hollywood films because both domestic and foreign markets were in favor of action movies.
【简答题】According to the MPAA, the movies for which under 17 requires accompanying parent or guardian are rated as ___________.
【简答题】生物界的细胞分为( )细胞和( )细胞。
【判断题】X-rated movies are worse than R-rated ones.
【简答题】细胞死亡又分为_________和_________。
【简答题】根据细胞核和细胞器的有无,而将植物的细胞分为_____________细胞和_____________细胞。
【简答题】根据所处的发育阶段于细胞分为( )和( )。根据发育潜能干细胞分为三类:( )、( )和( )。( )是全能干细胞,而( )是多能或单能干细胞。
【单选题】According to Stanton, the movies with the presence of smoking should be rated as_____.
【判断题】R-rated movies are for teenagers, but not for children.