股骨粗隆间骨折能够使用的内固定是 A．重建钉 B．空心钉 C．Richard钉 D．

任何人不得在未持有效证件的情况下从事起（）、指挥、司索作业。

认知疗法可用于下列哪些病症()

A．青少年行为障碍

B．焦虑症

C．抑郁症

D．心身疾病

E．精神分裂症

出现下图漫画《凡听证必涨价》现象，主要原因可能在于 

①决策部门缺乏求真务实的工作作风              

②听证代表不能客观反映民意                           

③决策部门没做到从群众中来到群众中去                     

④我国公民参与权得不到保障

A．①③④

B．②③④

C．①②④

D．①②③

“何忍无急去药”中的“去”意思是（）选项

A.离开

B.前往

C.藏

D.驱除

E.赶走

In a public-key cryptosystem, (71) encrypted with the public key can only be deciphered with the private key from the same (72) . Conversely, (71) encrypted with the private key can be decrypted only with the public key. Users can make their public keys (73) available or place them at a key distribution center or others to access. However, the private key must be (74) safe. In public-key systems there’s no (75) to find a safe channel for communicating a shared secret key.

（73）是（）

A.free

B.freely

C.locally

D.partly