在学校组织的一次雪后大扫除活动中，一名学生用与水平方向成37°的拉力F=100N

— I’m sorry to hear that some villagers got disabled in the earthquake.

— That’s too bad, but _______.

A．all is well that ends well

B．the darkest hour is nearest the dawn

C．where there is life, there is hope

D．it is good to have friends in trouble

设a、b、c、d都是整数，且m=a²+b²，n=c²+d²，mn也可以表示成两个整数的平方和，

其形式是（     ）

_______ the production up by 60%，the company has had another excellent year．

A．For

B．As

C．Because

D．With

I think you should ________ your studies, or you will never achieve your goal of entering an ideal college.[ ]

A．depend on  

B．concentrate on

C．put on  

D．come on

以下哪个是出于福建宁德的非物质文化遗产？（）

A、木板年画

B、漆线雕技艺

C、瓷雕塑烧制技艺

D、霍童线狮