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【单选题】
上面是对于固定铰支座的四种表示,请问固定铰支座可以提供几个反力?A.
一个水平
B.
一个竖向
C.
一个水平和一个竖向
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反馈参考答案：
举一反三
【简答题】听句子，选择正确的答语。 ( ) 1. A. My name is Jenny. B. Hello! C. This is a desk. ( ) 2. A. I'm six. B. I'm fine. C. I'm Li Ming. ( ) 3. A. There it is. B. I have seven books. C. This is a book. ( ...
【简答题】听录音，选择正确的答语。 ( ) 1. A. Hello! ( ) 2. A. This is Mike. ( ) 3. A. Hello! B. Bye. B. My name is Mike. B. See you!
【简答题】Hello,I’m an English girl. My first name is Lucy. My last name is White. I’m in No.3 Middle School.My father and mother are in No.3 Middle School,too. They are English teachers. My brother is in Pekin...
【单选题】What happened to the man?
A.
He was able to plant his garden.
B.
His plants were ruined by the hail.
C.
He didn't see the vegetables he needed.
【简答题】代数系统具备封闭性,交换律,结合律,幺元是( ),零元是( ) 。
【简答题】看图，选择对应的句子。 ( ) 1. A. Goodbye! ( ) 2. B. Hello! My name is Book. ( ) 3. C. Hello. I am Eraser. ( ) 4. D. Show me your pen. ( ) 5. E. Show me your ruler.
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