问题
选择题
正八边形的每个内角为 [ ]
A. 120°
B. 135°
C. 140°
D. 144°
答案
答案：B
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正八边形的每个内角为 [ ]
A. 120°
B. 135°
C. 140°
D. 144°
答案：B
| 从下列方框中选择短语并用其适当形式填空。 | |
2. He worked hard, now he ______ and confident about the coming mid-term examination. 3. We should not laugh at those who ______ just______ their failure in maths test. 4. He consistently ______ having sports whether how cold it is. 5. If you want to keep fit, you must ______ for at least one hour every day. |