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阅读理解 Too much TVwatching can harm children's ability to learn and even reduce their chances of getting a college degree, new studies suggest in the latest effort to examine the effects of television on children. One of the studies looked at nearly 400 northern California thirdgraders. Those with TVs in their bedrooms scored about eight points lower on math and language arts tests than children without bedroom TVs. A second study, looking at nearly 1, 000 grownups in New Zealand, found lower education levels among 26yearolds who had watched lots of TV during childhood. But the results don't prove that TV is the cause and don't rule out that already poorly motivated youngsters (年轻人) may watch lots of TV. Their study measured the TV habits of 26yearolds between ages 5 and 15. Those with college degrees had watched an average of less than two hours of TV per weeknight during childhood, compared with an average of more than 2 hours for those who had no education beyond high school. In the California study, children with TVs in their rooms but no computer at home scored the lowest, while those with no bedroom TV but who had home computers scored the highest. While this study does not prove that bedroom TV sets caused the lower scores, it adds to accumulating findings that children shouldn't have TVs in their bedrooms. 1. According to the California study, the lowscoring group might ________. A. have watched a lot of TV B. not be interested in math C. be unable to go to college D. have had computers in their bedrooms 2. What is the researchers' understanding of the New Zealand study results? A. Poorly motivated 26yearolds watch more TV. B. Habits of TV watching reduce learning interest. C. TV watching leads to lower education levels of the 15yearolds. D. The connection between TV and education levels is difficult to explain. 3. What can we learn from the last two paragraphs? A. More time should be spent on computers. B. Children should be forbidden from watching TV. C. TV sets shouldn't be allowed in children's bedrooms. D. Further studies on highachieving students should be done. 4. What would be the best title for this text? A. Computers or Television B. Effects of Television on Children C. Studies on TV and College Education D. Television and Children's Learning Habits
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【多选题】哪些因素共同塑造了国家文化,这些因素的相似与相异,决定了国家之间文化差异的程度。( )
A.
语言
B.
宗教
C.
地理位置
D.
民族
E.
经济发展水平
【单选题】坏疽与坏死的区别是:()
A.
病变部位不同
B.
病变范围不同
C.
病变性质不同
D.
有无腐败菌感染
【多选题】电焊工甲在漆房内焊接一工件时,电焊火花飞溅到附近积有较厚的油漆膜的木板上起火。在场工人见状惊慌失措,有的拿扫帚打火,有的用压缩空气吹火,造成火势扩大。后经消防队半个小时抢救,将火熄灭,虽未有伤人,但造成很大的财务损失。今后主要预防措施是()
A.
不准在喷漆房内进行明火作业。如必须施焊,应执行动火审批制度
B.
如必须施焊,不应执行动火审批制度
C.
油漆房内应备灭火器材
D.
清除一切可燃物
【单选题】托运人与运输企业之间的契约是发货人托运货物的原始依据,也是承运人承运货物的凭证,明确了双方的权力与义务的是
A.
货票
B.
提货单
C.
托运单
D.
行车路单
【多选题】标准预防所采用的预防措施主要是( )
A.
在操作中传染性物质有可能发生喷溅时医务人员必须戴面罩、口罩和护目镜
B.
认真洗手:在下述情况下必须立即洗手:摘除手套后;接触两个病人之间;可能污染环境或传染他人时
C.
戴手套:当医务人员接触病人的血液、体液、分泌物、排泄物以及黏膜、非完整性皮肤和污染物品前均应戴手套;在不同病人之间操作时一定要换手套,手套也不能代替洗手
D.
设备防污染并及时清洁消毒设备:被病人的血液、体液、分泌物和排泄物污染的医疗用品和仪器设备应及时做好清洁处理,重复使用的仪器和设备在用于别的病人前应进行清洁和适当的消毒灭菌
E.
戴手套:当医务人员接触病人的血液、体液、分泌物、排泄物,以及黏膜、非完整性皮肤和污染物品前均应戴手套;在不同病人之间操作时一定要换手套,手套也不能代替洗手锐利的器具和针头要小心处置,以防刺伤,无菌操作:医务人员在进行各项医疗、护理操作,以及环境(包括病床及床边仪器)的清洁、消毒时,应严格遵守各项操作规程
【单选题】以下关于医疗机构内新型冠状病毒感染预防与控制技术描述,正确的是?
A.
为疑似患者实施气管插管时应采取空气隔离措施
B.
普通病区(房)可以不设置应急隔离病室
C.
确诊患者死亡的,对尸体用 500mg/L的含氯消毒剂填塞所有开放通道
D.
医务人员可能受到患者血液、体液、分泌物等喷溅时,戴外科口罩、护目镜、穿普通隔离衣
【多选题】标准预防所采用的预防措施主要是( )
A.
认真洗手:在下述情况下必须立即洗手:①摘除手套后;②接触两个病人之间;③可能污染环境或传染他人时
B.
戴手套:医务人员接触病人的血液、体液、分泌物、排泄物,以及黏膜、非完整性皮肤和污染物品前均应戴手套;虽属同一病人,但既需接触清洁部位又要接触污染部位时也应更换手套
C.
口罩、面罩、防护服:在操作中传染性物质有可能发生喷溅时医务人员必须戴眼罩、口罩和穿防护衣
D.
设备防污染并及时清洁消毒设备:被病人的血液、体液、分泌物和排泄物污染的医疗用品和仪器设备应及时做好清洁处理,重复使用的仪器和设备在用于别的病人前应进行清洁和适当的消毒灭菌
E.
锐利的器具和针头要小心处置,以防刺伤,无菌操作:医务人员在进行各项医疗、护理操作,以及环境(包括病床及床边仪器)的清洁、消毒时,应严格遵守各项操作规程
【单选题】( )是托运人与承运人之间的契约,明确了承托双方在货物运输过程中的权利、义务和责任。
A.
运单
B.
货票
C.
路单
D.
货物清单
【单选题】坏疽与坏死的区别
A.
病变部位不同
B.
病变范围不同
C.
有无腐败菌感染
D.
病变性质不同
【简答题】设有一单位反馈系统,如果其开环传递函数为 (1) ?(2) 试求输入量为 和 时系统的稳态误差。
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