—Oh,where is my wallet?Maybe I left it in the car.

—You______ things behind!

A．are always leaving

B．were leaving

C．have left

D．always leaving

注射部位的定位，下列哪项是错误的( )

A．皮内注射：前臂掌侧下段
B．皮下注射：上臂三角肌下缘
C．臀中肌、臀小肌注射：髂前上棘外侧三横指处
D．臀大肌注射：髂嵴和尾骨联线外1/3处
E．股静脉注射：髂前上棘和耻骨结节联线中点内侧0.5cm