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【简答题】
退火和正火的主要区别是什么 ?生产中应如何选用?
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【简答题】阅读理解。 Hi, everyone, Look at this photo. He is my pet dog. His name is Eddie. Eddie is four years old. He has short, yellow fur and a long tail. He is fat. He is very friendly. Eddie lives with my fami...
【单选题】元素的原子结构决定其性质和在周期表中的位置。下列叙述正确的是
A.
多电子原子中，在离核较近的区域内运动的电子能量较高
B.
原子核外电子的数目越多，电子的运动状态就越多
C.
轨道表示式，是对原子核外电子运动状态最完美的描述
D.
所有元素原子的最外层电子数都等于该元素的最高化合价
【简答题】完形填空。 Jimmy is a black and white dog. We all like 1 very much. He is a member of our 2 . Jimmy is one and a half years old. He usually 3 at about 7: 00 a.m. And at 7: 30 he eats his 4 . He usually has...
【多选题】My Favorite Hobbies I enjoy three hobbies in my free time. My first hobby is playing with my two-year-old son. I especially like to teach him new words. He listens very carefully to me and copies what...
A.
He listens very carefully to me and copies what I say.
B.
Unfortunately, the ball makes the neighbor’s dog bark.
C.
The English on the news is too fast and really frustrates me.
D.
My son sits beside me, and sometimes we laugh until the tears come.
E.
My third hobby is planting flowers in my garden.
F.
I wish the snails would stop eating my plants, though.
【单选题】His old dog is very ______ to him because it always follows him wherever he goes.
A.
faithless
B.
faith
C.
faithfully
D.
faithful
【简答题】根据句意和首字母填空。 1. He is an o________ Chinese Basketball player. 2. The old man is very k________ and living. So they love him very much. 3. The well-known v________spends all his time on the violin. ...
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