净电荷
参考答案:所带正负电荷的代数和(通常指净负电荷)。
It’s said that this is the first time the painting_____ to the public, which attracts many people.
A.were displayed
B.are displayed
C.has displayed
D.has been displayed
患者男性,17岁,因左下肢疼痛3个月入院;查体:左小腿中段局部肿胀,组织增厚较硬,有压痛,局部皮温稍高。体温38.2℃,实验室检查:WBC:13.8×1012/L,N:78%;X线平片见下图。
根据以上临床资料及影像学检查,需要考虑哪些疾病()
A.急性骨髓炎
B.转移性神经母细胞瘤
C.骨干结核
D.尤因肉瘤
E.骨髓瘤
F.骨肉瘤