共查询到20条相似文献，搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
V Browning 《Canadian Metallurgical Quarterly》1997,5(5):16-18
The authors examined 20 general educational schools in Rostov-on-Don and identified 8 informative determinants of enterobiasis prevalence among them, such as the frequency of wet cleaning, the number of recreational rooms and gymnasia, over-crowding, the presence of extended-day groups, water supply, shower-rooms in the gymnasia, and shifts of educational processes. 相似文献
10.
11.
12.
13.
14.
15.
16.
Notes that television is the mass media most widely used by people over 60 yrs old and describes recent research on how and why the elderly use television. Discussion focuses on the amount and time of television viewing, the motives for viewing, program preferences, and research issues (television and program availability, the role of television in everyday life, and elderly viewers as consumers). (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
17.
18.
19.
20.