( )使建设项目参与各方通过项目信息门户完成一些工程项目的日常工作流程。
A.建设项目协同工作层 B.个性化设置层C.工作流支持层 D.数据安全层
参考答案:C
(5分)用KClO3和浓盐制取消毒剂二氧化氯的方程式如下:
KClO3+ HCl → KCl+ ClO2↑+ Cl2↑+ ( )
(1) 请完成该化学方程式并配平(未知物填入括号内,系数填入横线上)
(2) 浓盐酸在反应中显示出来的性质是(填编号)_______。
①只有还原性 ②还原性和酸性 ③只有氧化性 ④氧化性和酸性
(3) 产生0.1molCl2,则转移的电子的物质的是为_________mol.
Aristotle was one of those who could found a civilization, and while he thought of education as both a social value and an end in itself, he ascribed its chief importance (21) what might be considered a third basic concept of education: to train the mind to think, (22) what it is thinking about. The key is not (23) it knows but how it (24) any new fact or argument. "An educated man," Aristotle wrote in On the Parts of Animals, "should be able to (25) a fair offhand judgment as to the goodness or badness of the method used by a professor in his exposition. To be (26) is in fact to be able to do this." The Aristotle view of education as a (27) has become the conventionally worthy answer today (28) college presidents and other academic leaders are asked what an education should be. An educated man, says Harvard President Bok, (29) a deep breath, must have a "curiosity in (30) the unfamiliar and unexpected, an open-mindedness in entertaining opposing points of view, (31) for the ambiguity that surrounds so many important issues, and a willingness to make the best decision he can in the fact of uncertainty and doubt." This is an approach that appears to (32) more importance to the process of learning (33) to the substance of what is learned. The very old notion of the generalist who could comprehend all subjects has (34) been an impossibility. To make matters (35) more difficult, the fields of knowledge keep changing.
A. means B. medium C. result D. process