急性脊髓灰质炎感染时,病损通常发生于()
A.脊髓后角细胞
B.脊髓前角细胞
C.周围神经
D.小脑
E.基底核
参考答案:B
He _______ with his friends last weekend. [ ]
A. hanged out
B. hung out
C. hanged
D. hang out
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