激光打印机基本结构不包括（）
A.温度控制系统
B.控制系统
C.胶片传递系统
D.激光打印系统
E.信息传递与存储系统
参考答案：A
The nurse is providing breast cancer education at a community facility. The American Cancer Society recommends that women get mammograms （）.
A．yearly after age 40.
B．after the birth of the first child and every 2 years thereafter.
C．after the first menstrual period and annually thereafter.
D．every 3 years between ages 20 and 40 and annually thereafter.
枸杞、熟地应采用的粉碎方法是
A．单独粉碎
B．蒸罐
C．串料
D．串油
E．水飞
