当被测介质有可能产生沉淀物析出时,在仪表前加装()
A. 集气器
B. 沉降器
C. 凝液器
D. 水分离器
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压力表在测定动态压力时,最大工作压力不应超过量程的()
A. 1/2
B. 1/3
C. 2/3
D. 3/4
选出属于结构型压力测量仪表的有()
A. U形管压力计
B. 单管压力计
C. 倾斜管压力计
D. 弹簧管压力计
E. 波纹管压力计
F. 金属丝电阻应变片式压力计
G. 压电陶瓷压力计
在工厂测量微压的情况下,可以选择的压力测量仪表有( )。
A. 单管压力计
B. 倾斜管压力计
C. 弹簧管压力计
D. 膜片式压力计
E. U形管压力计
Multiculturalism is a concept with many meanings. But it often refers to1. ______ of immigrant and minority groups as distinct communities, distinguishable from the majority population. Like bilingualism, multiculturalism provokes2. ______ . Advocates of multiculturalism believe that members of minority groups should enjoy equal rights in American society without giving up their diverse 3. _______ . Multicultural education programs, for instance, strive to teach the content of different cultures, to build 4.______ of these cultures, and to eliminate discrimination (歧视). The hope is to enable students to understand how other cultures view the world. Multiculturalists reject the idea of a 5._____ and assimilation (同化); they dismiss the idea that national identity must be based on a common heritage and values.Critics argue that multicultural education 6. _____ among groups more than it fosters tolerance of one group for another. Cultural pluralism, critics contend, promotes rivalry (敌对) and 7.____ . Moreover, they assert, European traditions remain central to American culture and institutions (风俗). Some critics find multiculturalism a token (象征性的) gesture 8._____ to hide continuing domination of American culture by the majority group. Others argue that 9._____ of cultural differences and group identities does not help 10._____ social and economic disadvantages.