I went to bed very late last night, _____, early the next morning.

A．or rather

B．at least

C．at most

D．in a word

急性白血病浸润的体征最多见于（）

A.中枢神经系统

B.心脏增大

C.胸骨压痛

D.牙龈肿胀，皮肤损害

E.淋巴结、肝脾肿大