单参数直方图反映的是（）

A.不同荧光强度的颗粒数量的多少

B.同样荧光强度的颗粒数量的多少

C.不同荧光强度的颗粒性质

D.同样荧光强度的颗粒性质

E.以上都不是

Jane’s pale face suggested that she      ill, and her parents suggested that she      medical examination.

A．be; should have

B．was; have

C．should be; have

D．was; has