可见光固化材料与热凝塑料相比，最大的优点是（）
A.塑料颜色好
B.塑料强度好
C.产生义齿变形概率小
D.工序繁杂
E.塑料内较少产生气泡
参考答案：C
—Lily was made __________ the test paper because of the mistakes she made .
—Really? I ________ anything about that .
A．copy; didn’t tell
B．to copy ; am not told
C．copying ; don’t tell
D．to copy; wasn’t told
严重腹泻的患者容易引起水钠代谢紊乱的类型是（）
A.高渗性脱水
B.等渗性脱水
C.低渗性脱水
D.水中毒
E.水肿
