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【单选题】
直流电动机的制动方法中不采用的有A.
反馈制动
B.
反接制动
C.
能耗制动
D.
直接制动
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【单选题】For the following paragraphs, choose the summary you think is best. Sociolinguistics is concerned with the ethnography of speaking, that is, with cultural and subcultural patterns of speech variation ...
A.
A foreigner may be familiar with the English language but not with the appropriate topics for making small talk.
B.
North Americans may not respond appropriately to greetings in other societies.
C.
Sociolinguists are interested in how speech is used in different cultures and different social contexts, such as in making small talk and greeting people.
D.
Conversation differs around the world.
【单选题】Sociolinguistics is concerned with the ethnography of speaking, that is, with cultural and subcultural patterns of speech variation in different social contexts. The sociolinguist might ask, for examp...
A.
A foreigner may be familiar with the English language but not with the appropriate topics for making small talk.
B.
North Americans may not respond appropriately to greetings in other societies.
C.
Conversation differs around the world.
D.
Sociolinguists are interested in how speech is used in different cultures and different social contexts, such as in making small talk and greeting people.
【简答题】普通螺纹的公称直径是指螺纹的（）的基本尺寸，管螺纹的公称直径是指管子的（）
【单选题】Recognizing the Summary: For the following paragraphs, choose the summary you think is best. Sociolinguistics is concerned with the ethnography of speaking, that is, with cultural and subcultural patt...
A.
A foreigner may be familiar with the English language but not with the appropriate topics for making small talk.
B.
North Americans may not respond appropriately to greetings in other societies.
C.
Sociolinguists are interested in how speech is used in different cultures and different social contexts, such as in making small talk and greeting people.
D.
Conversation differs around the world.
【单选题】Read the following paragraph and compare the summaries. Decide which is the best.Sociolinguistics is concerned with the ethnography of speaking, that is, with cultural and subcultural patterns of spee...
A.
A foreigner may be familiar with the English language but not with the appropriate topics for making small talk.
B.
North Americans may not respond appropriately to greetings in other societies.
C.
Conversation differs around the world.
D.
Sociolinguists are interested in how speech is used in different cultures and different social contexts, such as in making small talk and greeting people.
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