创伤后或手术中止血带使用不当引起最严重后果是()
A.止血压迫造成局部皮肤坏死
B.形成充血带
C.患肢麻木
D.患肢坏死
E.患肢剧烈疼痛
参考答案:D
下列有关图像的分析正确的是 ( )
A.图①表示反应“CO(g)+H2O(g)CO2(g)+H2(g)”中的△H大于0
B.图②可表示反应“3KSCN+FeCl3Fe(SCN)3+3KCl”向正反应方向移动
C.图③表示反应“A2(g)+3Br(g)2AB3(g)”的△H小于0
D.图④可表示压强对反应“2A(g)+2B(g)3C(g)+D(s)”的影响,且乙的压强大
With the widespread use of the personal computer, many authorities in the field of (56) have pointed out the need for computer literacy. Unfortunately, there is no (57) agreement as to what the term "computer literacy" means. Some feel that computer literacy means knowing how to make the computer "compute"; that is knowing how to program computers in one or more programming languages. Others feel that knowing how to program is merely a small segment of computer literacy. These people (58) the major emphasis in schools should be on teaching how to effectively use the many software packages that are available. Still others suggest that computer literacy education is not required. They suggest that computers are being so rapidly integrated into our society that using a computer will be as (59) as using a telephone or a video tape recorder, and that special education will not be necessary. (60) of one’s definition of computer literacy, it is recognized by most that learning to use a computer is indeed an important skill in modern society.
A.culture
B.science
C.education
D.industry