种植植入原则中错误的是
A．手术的无创性B．种植体的初期稳定性C．种植体植入后即可承受咬合D．尽量保留健康的附着龈E．避免污染
参考答案：C
．I didn’t know how to _______ the problems I faced, so I asked my parents for help.
A．do with
B．doing with
C．deal with
D．dealing with
可用于检测活体组织代谢物水平的影像学检查是（）
A.CT
B.神经心理检查
C.MRS
D.EMG
E.ECG
