----It seems the coach isn’t pleased with my present condition, I put on some weight.

----As a gymnast, you’ll never be in          until you eat less and take more exercise.

A．size

B．shape

C．order

D．height

为了加速漂白粉的漂白作用，最好的方法是 [ ]

A．加入苛性钠溶液

B．用水湿润

C．加少量稀盐酸

D．加热干燥使用