判断韧性的依据是()
A、强度和塑性
B、冲击韧度和塑性
C、冲击韧度和多冲抗力
D、冲击韧度和强度
参考答案:C
It was several years I finally realized David had lied to me.[ ]
A.when; that
B.that; when
C.before; that
D.until; why
腭前神经腭大孔注射法麻醉时进针点是上颌第三或第二磨牙腭侧龈缘至腭中线连线的()
A.牙冠的腭侧龈缘处
B.中外1/3交界处
C.外侧1/3
D.内侧1/3
E.中内1/3交界处