易发生中枢神经系统白血病的疾病是()
A.急性淋巴细胞白血病
B.急性早幼粒细胞白血病
C.恶性淋巴瘤
D.慢性粒细胞性白血病
E.急性单核细胞白血病
参考答案:A
块体对砌体抗压强度有何影响?
Explain the meaning of the following terms in company law:
(b) a fi xed charge; (3 marks)