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【多选题】
锅炉的燃烧设备由( )、( )、( )以及( )组成。A.
燃烧室
B.
燃烧器
C.
加燃料装置
D.
炉排
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反馈参考答案：
举一反三
【简答题】NK细胞的主要生物学功能有哪些？
【简答题】根据上下文和首字母提示，补全下列单词。 1. My pens and books are in my b______. 2. I don't have a pencil s______. Do you have one, Tom? 3. Do you have a n______? You can take notes (记笔记) in it. 4. This is my phone number...
【单选题】I am a(n)_____.So I don't have to share my things with other children.
A.
octuplets
B.
twin
C.
only child
D.
baby
【简答题】I am a(n)____________.So I don't have to share my things with other children.
【简答题】NK 细胞的生物学功能有哪些?
【单选题】I am a(n) ______, so I don't have to share my things with other children.
A.
octuplets
B.
only child
C.
siblings
D.
twin
【简答题】Finish the sentences with the correct words from the box. 1)octuplets 2)only child 3)siblings 4)twin I am a(n) _____. So I don't have to share my things with other children.
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