特发性血小板减少性紫癜的主要发病机制是()
A.脾吞噬血小板增多
B.骨髓巨核细胞生成减少
C.骨髓巨核细胞生成增加
D.雌激素抑制血小板生成
E.抗血小板抗体产生
参考答案:E
He is much richer than what he _____.
A.wouldbe
B.mustbe
C.usedtobe
D.couldbe
The tallying of cargo refers to such kind of work that the amount and condition of all cargo should be checked().
A.after its arrival at the destination
B.during the ship's voyage at sea
C.before they come to the dock
D.during the time when the loading or diacharging is going on