下列关于尿布皮炎正确的是（）。

A.粪便中的细菌分解湿尿布上的尿而产生的氨刺激发生

B.发生于1～4个月的婴儿

C.尿布接触部位的红斑，水肿，丘疹，丘疱疹，糜烂，严重者可发生浅溃疡

D.勤用肥皂和热水清洗

E.需与念珠菌性皮炎鉴别

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
(73) functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.

A. ISO B. ITU C. IEEE D. CCITT

A socket is composed of two addresses: (74) .Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.