问题
单项选择题
元素的原子相互化合的（），决定着元素的化合价。
A.大小
B.形状
C.数目
D.方向
答案
参考答案：C
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元素的原子相互化合的（），决定着元素的化合价。
A.大小
B.形状
C.数目
D.方向
参考答案：C
It was June. The sun was in the sky. It was very hot. Jim was tired of school. He wanted to be at the beach. He could not stay in his 1 . He could not 2 talking. While the teacher wrote on the board, Jim got up and talked to a friend. The teacher, Mr Smith, heard the 3 and said: "Jim, sit down and be quiet. " Jim sat down. Mr Smith 4 his lesson. Jim got up and talked to another friend. "Sit down and be quiet," said Mr Smith. He was very 5 . "OK," said Mr Smith. "If you want to talk, 6 come to the front of the classroom and 7 the teacher. " "All right," 8 Jim. He came to the front of the classroom and said:"Quiet, 9 . I am the new teacher. Class is over now. Let's have a 10 "
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