下列不属于菊花植株结构层次的是（　　）

A．细胞

B．组织

C．系统

D．器官

The client with a head injury receives mannitol (Osmitrol) during surgery to help decrease intracranial pressure. Which of the following nursing observations would most likely indicate that the drug is having the desired effect

A．Urine output increases.

B．Pulse rate decreases.

C．Blood pressure decreases.

D．Muscular relaxation increases.