义齿制作过程中,填胶后热处理升温过快会导致()
A.基托变形
B.人工牙变形
C.模型变形
D.基托塑料聚合不充分
E.基托内形成气泡
参考答案:E
白细胞管型的存在可作为哪种疾病诊断的依据()
A.急性肾功能衰竭
B.肾盂肾炎
C.肾病综合征
D.急性肾小管坏死
E.慢性肾小球肾炎
The view________many scientists hold is________too much emission of carbon dioxide is destructive.[ ]
A. which; which
B. that; that
C. that; which
D. what; that