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更多“双层底内可作为压载舱或液舱，可装载压载水、淡水或燃油。()”相关的问题
①、首尖舱；②、尾尖舱；③、双层底；④、深舱；⑤、隔离空舱
A. ①、②、③、④
B. ②、③、④、⑤
C. ①、③、④、⑤
D. ①、②、④、⑤
A. 自由液面对稳性的影响不变
B. 自由液面对稳性的影响无法判断
C. 自由液面对稳性的影响随排水量的变化而改变
D. 自由液面对稳性的影响随液体密度的变化而改变
Language is always changing.The earliest known languages had complicated grammar but a small, limited vocabulary.Over the centuries, the grammar changed, and the vocabulary grew.For example, the English and Spanish people who came to America during the sixteenth and seventeenth centuries gave names to all the new plants and animals they found.In this way, hundreds of new words were introduced into English and Spanish vocabularies.Today life is changing very fast, and language is changing fast, too.
There are several major language families in the world.Some scientists say there are nine main families, but other scientists divide them differently.The languages in each family are related, and scientists think that they came from the same parent language.
We learn our own languages by listening and copying.We do this without studying or thinking about it.But learning a foreign language takes a lot of study and practice.
(1).What do all languages in the world have?
A.Complicated vocabularies
B.Single grammar
C.Large vocabularies
D.A system of sounds
(2).What does the earliest known languages have?
A.Different word orders
B.Difficult grammar
C.Difficult vocabularies
D.Easy sound system
(3).What did the English and Spanish people who came to America do?
A.They gave names to different animals
B.They found many new plants and animals
C.They changed the grammar of English and Spanish
D.They introduced new words into English and Spanish
(4).Scientists think that the languages in each family_________________________.
A.are related
B.should be divided differently
C.should be separated
D.are not very different
(5).According to the passage, we learn our own language by_________________________.
A.thinking about it
B.practicing it
C.listening and copying
D.studying it
B.检举党的任何组织和任何党员违纪违法的事实
C.参加党组织开展的评议党员领导干部活动，发表意见
D.向所在党组织或者上级党组织提出罢免或者撤换不称职党员领导干部职务的请求
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