数字式随动系统可分为（）、控制数字式随动系统和脉冲控制数字式编码控制随动

In WAR MADE EASY Norman Solomon demolishes the myth of an independent American press zealously guarding sacred values of free expression. Although strictly focusing on the shameless history of media cheerleading for the principal post World War II American wars, invasions, and interventions, he calls into question the entire concept of the press as some kind of institutional counterforce to government and corporate power.
Many of the examples compiled in this impeccably documented historical review will be familiar to readers who follow the news on the Internet. But such examples achieve fresh impact because of the way Solomon has organized and analyzed them. Each chapter is devoted to a single war hawk argument ("America Is a Fair and Noble Superpower," "Opposing the War Means Siding with the Enemy," "Our Soldiers Are Heroes, Theirs Are Inhuman"), illustrated with historical examples from conflicts in the Dominican Republic, E1 Salvador, Vietnam, Grenada, Panama, Kosovo, both Iraq wars, and others in which the media were almost universally enthusiastic accomplices.
The book should really be subtitled "War reporting doesn’t just suck, it kills. "it makes you feel like demanding a special war crimes tribunal for corporate media executives and owners who joined the roll-up to" shock and awe" as non-uniformed psywar ops. To be sure, this would raise the issue of whether or not following orders might suffice for the defense of obedient slaves such as Mary McGrory and Richard Cohen, who performed above and beyond the call of duty. "He persuaded me, " ncGrory gushed(热情洋溢地表达) the morning after Colin Powell addressed a plenary session of the United Nations on February 5, 2003, declaring that Iraq had weapons of mass destruction. " The cumulative effect was stunning. "In the same Washington Post edition, Cohen wrote.
The evidence he presented to the United Nations—some of it circumstantial, some of it absolutely bone-chilling in its detail—had to prove to anyone that Iraq. not only hasn’t accounted for its weapons of mass destruction but without a doubt still retains them. Only a fool—or possibly a Frenchman—could conclude otherwise.
Solomon demonstrates how this kind of peppy prewar warm up degenerates into drooling and heavy breathing once the killing begins. As if observing a heavy metal computer game, the pornographers of death concentrate on the exquisite craftsmanship and visual design of the murder machines and the magnificence of the fiery explosions they produce.

The word "suffice" underlined in Paragraph 3 is closest in meaning to ______.

A．be sufficient for

B．satisfy

C．discovery

D．provide

患者女，18岁，1天前开始恶寒，发热，头痛，肢体酸痛，泄泻，质清稀，甚则如水样，舌苔白腻，脉濡缓。

选用下列哪首方剂治疗最合适（）

A.藿香正气散

B.保和丸

C.痛泻要方

D.参苓白术散

E.四神丸

除法定情形外，外国人在我国就业实行( )。

A．职业培训

B．行政备案

C．职业技能鉴定

D．行政许可

材料：

种子的萌发 教师课前要求学生收集一些种子萌发的资料，或者向家长了解“春种”时农民要做的事。上课时，在复习种子的结构后，教师请学生谈谈“春种”时农民要做些什么，并请学生把在家萌发的种子拿出来展示。教师发现有个别组没能拿出成果.让他们谈一谈原因，有个别组说他们在做实验时水放少了，有个别组说不出原因。此时，教师启发学生思考为什么有些组的实验成功了，而有些失败了，使学生意识到种子萌发需要一定的条件.教师鼓励学生猜测种子萌发可能需要什么环境条件。 大多数学生猜测种子萌发需要水、空气、光照、肥料、土壤等。教师选择“种子的萌发需要充足的水”引导学生设计实验方案。通过讨论，教师引导学生认识对照实验法.播放一段种子萌发多组对照实验录像，给予学生提示。然后请各组学生运用对照实验法设计其他条件的实验方案。课后执行实验方案。

问题： 作为一名教师，在这种学习活动实施阶段应做些什么工作？

简述以车轮角加速度为控制参数的ABS工作原理。