特发性血小板减少性紫癜血小板破坏的主要场所是()
A.骨髓
B.肝脏
C.血管内
D.脾脏
E.外周血
参考答案:D
He translated the speech _____ French ____ Spanish. [ ]
A. from ; into
B. from ; to
C. by; into
D. of; to
消声器的消声能力用()来表示