股骨髁间骨折的治疗原则（）。

A.达到良好的对位，关节面光滑完整

B.积极早期切开复位内固定，早期活动，防止发生创伤性关节炎

C.强调对位和制动

D.关节内骨折，应以保守非手术为主

E.强调骨折对位，不强调韧带损伤修复

Sequential circuit is a common logic device whose output values, at a given instant, depend upon its input values and the internal state at that instant, and whose internal state depends upon the (66) preceding input values and the preceding internal state. A sequential circuit can assume a finite number of internal states and may therefore be regarded, from an abstract (67) , as a finite (68) .

Combinational circuit is another logic device whose output values, at any given instant, depend upon the input values at that instant. A combinational circuit is a (69) of a sequential circuit whose internal state is not taken (70) .

（70）处填（）。

A．calculation

B．in account

C．audit

D．attention