属于慢性放射性皮肤损伤的是()。
A.脱毛
B.水肿
C.水疱
D.硬结水肿
E.坏死或溃疡
参考答案:D
Many buildings in the city need repairing, but the one ______ first is the library.
A.repaired
B.being repaired
C.repairing
D.to be repaired
信息加工论认为知识单元有四类()。