主要因血小板破坏增多导致血小板减少的疾病是()。
A.急性白血病
B.肝硬化脾肿大
C.原发性血小板减少性紫癜
D.巨幼细胞贫血
E.骨髓纤维化
参考答案:C
Her many talents were ___________all her friends.
A.envy among
B.the envy of
C.the envy at
D.envy it
楼宇对讲系统的门口机键盘需定期用比较干的湿抹布擦拭。()