对循环氨水这一流程如何经心操作？

已知M（-2，1），N（3，2），直线y=kx+1与线段MN有交点，则k的范围是______．

《中国商报》曾报道，乌鲁木齐挂面厂在日本印制塑料包装袋。由于有关人员在审查设计图纸时粗心大意，没有发现乌鲁木齐的“乌”字错为“鸟”字，结果从日本运回国内的包装袋上“乌鲁木齐”全部错为“鸟鲁木齐”。仅因为一“点”之差，16万元白白扔掉了。该案例充分说明了从业人员在日常职业活动中应（）。

A、强化责任意识

B、坚守工作岗位

C、诚实守信

D、勤奋学习，提高专业技能

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(66) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string.
(67) is a protocol that most USENET machines now use it to allow news articles to propagate from one machine to another over a reliable connection.
(68) is an approach preferred by cable TV providers. In this solution the fiber terminates at an optoelectrical converter and the final segment is a shared coaxial cable.
(69) is a device used to connect two separate network that use different communication protocol.
(70) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

A．MD

B．RSA

C．DES

D．MIB

患儿8天，孕妇早产，出生体重2000g，生后3天出现黄疸，今日最明显，体温36.5℃，精神状态好，吃奶正常，血白细胞12×10⁹/L，血清总胆红素198μmol/L，以未结合胆红素增高为主。其黄疸最可能的原因是（）

A.新生儿败血症

B.新生儿肝炎

C.新生儿溶血病

D.生理性黄疸

E.先天性胆道闭锁

当今的 * * 广场，其长度、宽度和面积各是多少？