多毛细胞白血病是一种少见的慢性何种细胞增殖性疾病（）

A.单核细胞

B.淋巴细胞

C.浆细胞

D.中性粒细胞

E.幼红细胞

.According to the test disciplines it is_______ that any student takes a mobile phone into thee may examination room.

A．without question

B．beyond question

C．out of question

D．out of the question