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【多选题】
以下属于火灾探测器的有( )
A.
温感
B.
烟感
C.
手报
D.
光感
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【简答题】Use the correct words from "import/inhale/introverted/exclude/expense or their opposite meaning words "to complete the following sentences.Be sure to use the correct form of the word. That company ___...
【简答题】Use the correct words from "import/inhale/introverted/exclude/expense or their opposite meaning words "to complete the following sentences.Be sure to use the correct form of the word. The lunches that...
【判断题】非物质文化比如要靠口耳相传的看不见摸不着的传统文化,是当前国家和国际上都非常重是要保护的
A.
正确
B.
错误
【简答题】Use the correct form of the words in the box to complete each sentence. Each word can only be used once.
【简答题】Use the correct form of the given words to fill in the blankets. He had a (tend) to forget things.
【简答题】Use the correct words from "import/inhale/introverted/exclude/expense or their opposite meaning words "to complete the following sentences.Be sure to use the correct form of the word. It is harmful to...
【判断题】功能创新的基础条件是功能整理,功能创新的关键是功能定义。
A.
正确
B.
错误
【简答题】Complete the sentences. Use the correct form of the verbs in the box.
【单选题】用CH3MgBr与下列哪一种原料能够最简便地合成叔丁醇?
A.
CH3COCH3
B.
CH3CH2CH2OH
C.
CH3CHO
D.
CH3—CHOH—CH3
【单选题】用CH3MgBr与下列哪一种原料能够最简便地合成叔丁醇?
A.
CH3COCH3
B.
CH3CH2CH2OH
C.
CH3CHO
D.
CH3—CH—CH3
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