下列物质中属于复合材料的是[ ]
A、玻璃
B、生物陶瓷
C、塑料
D、玻璃钢
答案:D
—Thank you so much for the lovely evening, Dennis.
—You’re quite welcome, Julie. ____. We’d been looking forward to seeing you.
A.Were glad to meet you
B.I’m afraid you didn’t have a good time
C.Thank you for your coming
D.Just stay a little longer, please
不属于干槽症临床表现的是()
A.阵发性疼痛
B.拔牙窝内常有腐败坏死组织
C.拔牙窝内有明显腐臭味
D.骨壁常有明显触痛
E.以疼痛为主要症状