种植植入原则中以下哪项是错误的
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
Which of the following statements is FALSE All else equal, a floating-rate bond with:（）
A. coupon reset dates every 3 months will have more price fluctuation than a bond with reset dates every 6 months.
B. a fixed-margin rate in the coupon formula will experience greater price fluctuation than a bond with an adjustable margin rate.
C. an interest rate cap will have more price fluctuation than a bond with no interest rate cap.
（）以上隧道宜配量电子门禁系统和电子安全监控系统。
A.500m
B.750m
C.1000m
D.1500m
