小儿胚胎期造血包括以下哪几个造血期（）
A.中胚叶造血期
B.淋巴结造血期
C.肝脾造血期
D.胸腺造血期
E.骨髓造血期
参考答案：A, C, E
内伤发热一般起病病程（）
A.较急、较短
B.较缓、较长
C.较急、较长
D.较缓、较短
E.不定、不定
He hasn't slept at all for three days.________ he is tired out. [ ]
A. There is no point
B. There is no need
C. It is no wonder
D. It is no use
