下列哪些肿瘤无包膜?()
A.乳腺纤维腺瘤
B.肌肉内血管瘤
C.皮肤基底细胞癌
D.淋巴管瘤
E.甲状腺腺瘤
参考答案:B, C, D
利润表是反映企业( )的报表。
A.特定日期财务状况
B.一定时期财务状况
C.特定日期经营成果
D.一定时期经营成果
In the last few years, we have made great progress________telecommunication.[ ]
A. in area of
B. in field of
C. in the area of
D. on the field of