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阅读理解: A There is a big old tree near my house ,A black bird lives in the tree, Every day I take food to the tree, The bird sees me and comes down. The food is in my hand. The bird comes to my hand and eats the food. After that it goes back to the tree. I give some food to the bird every day. And so the bird knows me. I like the bird and the bird likes me, We are good friends. ( )1.What‘s in the tree? A. Big black bird B.A black bird C. An old black bird D.A big black bird ( )2.Why does the bird come down? A. Because some food is in my hand. B. Because the bird eats some food. C. Because the bird likes food. D. Because the bird eats good food. ( )3.Where does the bird go back?________ A. My hand B. The house C. The tree D. In the hand ( )4.When do I give some food to the bird? A. At noon B. Every morning C. Every day D. Every evening ( )5.Why does the bird know me? A. Because the bird eats food every day. B. Because the bird lives in my house. C. Because I give some food to the bird every day. D. Because I put some food in my hand.
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【单选题】感应加热淬火时,若频率为1-10KHZ,则淬硬层深度为()。
A.
17.5-22.5㎜
B.
16-18㎜
C.
11-12.5㎜
D.
2-8㎜
【多选题】关于《饮酒》(其五),下列说法正确的是
A.
表现了诗人挺立不屈的性格特征
B.
表现了诗人对世间喧嚣的厌恶
C.
反映了田园生活的恬静、闲适
D.
表现了诗人及时行乐的思想
【单选题】感应加热淬火时,若频率为1—10kHZ,则淬硬层深度为()。
A.
11.5—20mm
B.
2—8mm
C.
20—25mm
D.
9.5—10.5mm
【判断题】感应加热淬火时,若频率为1—10kHZ,则淬硬层深度为20—25mm。
A.
正确
B.
错误
【判断题】项目创建并执行之后,如果发现所选底稿模板不合适,可以在作业端选择底稿模板,对底稿重新初始化。
A.
正确
B.
错误
【单选题】古代赏石的品种主要是 、灵璧石、英德石及昆石等形态石为主要赏石种类。
A.
太湖石
B.
泰山石
C.
雨花石
D.
长江石
【单选题】感应加热淬火时,若频率为1—10kHZ,则淬硬层深度为()。
A.
0.5—2mm
B.
2—8mm
C.
10—15mm
D.
15—20mm
【单选题】感应加热淬火时,若频率为1-10kHZ,则淬硬层深度为( )。
A.
17.5-22.5mm
B.
16-18mm
C.
11-12.5mm
D.
2-8mm
【单选题】关于陶渊明的《饮酒》(其五),下列说法正确的是
A.
表现了诗人挺立不屈的性格特征
B.
表现了诗人对世间喧嚣的厌恶 以及悲观厌世的情绪
C.
反映了田园生活的恬静、闲适
D.
表现了诗人及时行乐的思想
【单选题】感应加热淬火时,若频率为1—10kHZ,则淬硬层深度为()。
A.
17.5mm以上
B.
26—48mm
C.
2—8mm
D.
9mm以上
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