先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。

Dear Anna，

    How's your summer vacation going? I am having fun in Shanghai，China．I am sitting in a1now．It is big and there are about 50 tables in it．I am2some tofu and a small bowl of mutton noodles3carrots．I'm also drinking some red tea．I will450 yuan for the meal(餐)．The dumplings here look good ,and I will eat 5next time．

    The food here is very good. The noodles and the tofu are6, and the vegetables are fresh(新鲜的)，7the tea isn't very good．

    The people in the restaurant use chopsticks(筷子)to have meals．I8use them and I am learning9to use them．It is very interesting．I think it will take me a long time to10the meal．

    I will go back to New York next week．See you soon．

    Yours，

    Sally

如图甲所示，倾角θ=37°的粗糙斜面固定在水平面上，斜面足够长．一根轻弹簧一端固定在斜面的底端，另一端与质量m=1.0kg的小滑块（可视为质点）接触，滑块与弹簧不相连，弹簧处于压缩状态．当t=0时释放滑块．在0～0.24s时间内，滑块的加速度a随时间t变化的关系如图乙所示．已知弹簧的劲度系数k=2.0×10²N/m，当t=0.14s时，滑块的速度v₁=2.0m/s．g取l0m/s²，sin37°=0.6，cos37°=0.8．弹簧弹性势能的表达式为E_p= $\frac{1}{2}$ kx²（式中k为弹簧的劲度系数，x为弹簧的形变量）．求：

下列生活方式有利于身心健康的是（　　）