I ____________ to buy a gift for my mother. [ ]
A. played
B. wants
C. wanted
答案:C
伯基特淋巴瘤病理特点是
A.满天星现象B.R-S细胞C.陷窝细胞D.全身淋巴结无痛性肿大
超声伪像的产生,以下那种看法最正确:
A.静态双稳态超声诊断仪,最常见
B.实时双稳态超声诊断仪,也很常见
C.实时灰阶超声诊断仪,相对常见
D.数字化高档超声诊断仪,不常见
E. 以上均不正确