类风湿性髋关节炎与髋关节结核大多没有

A．ThOmas征阳性

B．X线摄片见骨质疏松，关节肿胀

C．血沉增快

D．最后发展成关节骨性强直

E．均可发生病理性半脱位

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.

The key to SNMP (76) is its simplicity. It has a small command set that does a good job of collecting information from (77) any network device. In a SNMP environment, (78) of the work is handled by the network management system. Devices that are being managed are not (79) with processing (80) that might affect their performance.

（78）是（）

A.burdened

B.influenced

C.destroyed

D.mitigated