根据汉语提示或单词的正确形式完成句子。

1. He is a _______ (不诚实) boy. We don't like him.

2.  Don't throw it with a _______(石头) when you see the dog coming over.

3. The area of_______(海洋) is much bigger than that of the land.

4. He is very strong because he can _______ (举起) so heavy things.

5.  This kind of flower _______(闻起来) nice and sweet.

6. He has_______(little) time to spend with the family than last year.

7. Lin Tao looks_______ (worry) about the exam.

8. Many _______( visit)  come to China every year.

双轴对称工字形简支梁，有跨中荷载作用于腹板平面内，作用点位于哪个位置时整体稳定性最好？（）

A.形心位置

B.上翼缘

C.下翼缘

D.形心与上翼缘之间