人体的结构层次：（）。
参考答案：细胞→组织→器官→系统→人体
催眠药服用时间一般是()
A.饭前
B.饭后
C.临睡前
D.清晨空腹
________ of being involved in the attempted murder, she was questioned by the police.[ ]
A. Convinced
B. Suspected
C. Charged
D. Confirmed
