两肩一高一低，形成颈短耸肩，常见于（）
A.脊柱侧弯
B.肩关节脱位
C.先天性肩胛高耸症
D.外伤性肩锁关节脱位
E.三角肌萎缩
参考答案：A, C
阅读下列短文，判断正（A）误（B）。
( )1. Jane often annoys her classmate in math classes.
( )2. Jane does best in P.E.
( )3. Jane is good at writing compositions.
( )4. She needs to work hard at learning languages ,or she will fail in them.
( )5. According to the form, we can know Jane has got ten subjects.
十进制数675可用BCD码表示为（）
A.0110 0111 0101
B.0110 0111 0100
C.0100 0101 0100
D.0110 0101 0101
