SKF197726型滚动轴承装置由密封座、()、滚子、塑钢保持架、中隔圈、内圈、密封罩组件等组成。
参考答案:外圈
A quarter of the world’s population now speaks English. If you want to 16 your products, or yourself, you have no choice 17 to do it in English. Politicians and business people must speak English if they want to make their mark 18 the world’s stage. Writers of minority languages can 19 hope to sell their books unless they write in English.As English is spoken all over the world, it means that no individual country can really exercise a 20 influence over it. In the past, it was the mother tongue 21 who controlled the future of the language. Now, indeed for the last few decades, the mother tongue users are in a significant 22 .This means that the character of the language could well 23 with new words, new rhythms, and new pronunciations. It isn’t going to be British and American English anymore- that’s 24 . All over the world education authorities are struggling to find the resources to meet the 25 for English.However, it is open to question whether they are putting all their eggs in one 26 . The future of English language is intimately 27 the electronic revolution. Satellite television and the Internet have helped accelerate the 28 of English, but will that always be the caseThe Internet, 29 , is now seen as the saviour of minority languages. Indeed, with the continuing improvements in electronic translation, will we even need a(n) 30 language It is open to question.
A.speakers
B.followers
C.believers
D.interpreters
对于长短桩复合地基,下题叙述中哪些条是正确的( )
A.长桩宜采用刚度较小的桩,短桩宜采用刚度较大的桩
B.长桩宜采用刚度较大的桩,短桩宜采用刚度较小的桩
C.长桩与短桩宜采用同一桩型
D.长桩与短桩宜采用不同桩型