I have never read interesting story. [ ]
A. such
B. so
C. such an
D. so an
答案:C
无淋巴结转移的肺癌是
A.早期肺癌
B.隐性肺癌
C.肺瘢痕癌
D.小细胞肺癌
在哪些情形下,设备需要进行大修,不适宜大修的予以更换?