良性肿瘤与恶性肿瘤的鉴别诊断要点是()
A.MRl检查
B.局部疼痛症状
C.肿块生长速度
D.肿瘤有无包膜
E.病理组织检查
参考答案:E
66中,左边的“6( )个( ),右边的“6( )个( )
The opening between the rocks was very narrow, but the boys managed to _______ through.
A.press
B.squeeze
C.stretch
D.leap