片内总线

女，18岁。2天前上腹部被人踢伤。现出现右上腹及背部疼痛，伴呕吐，呕吐物为少量咖啡样液体，尿正常，X线检查提示腹膜后组织有少量积气，可能诊断为（）

A.胃挫伤

B.十二指肠损伤、穿孔

C.横结肠损伤、穿孔

D.回肠损伤、穿孔

E.脾破裂

天气与人类息息相关，对人类的活动的影响表现在（　　）

①生活方面   

②农业生产方面   

③军事   

④交通方面   

⑤工业生产和工程建设方面    

⑥商业、旅游活动和休闲娱乐等方面．

A．①②③

B．①②③④

C．②③④⑤⑥

D．①②③④⑤⑥

解释程序的功能是( )。

A．解释并执行高级语言程序
B．将高级语言程序翻译成目标程序
C．解释并执行汇编语言程序
D．将汇编语言程序翻译成目标程序

简述北洋政府立法活动的主要特点。

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.

A．keep

B．keeped

C．keeping

D．kept