— ?
— I have a cold and headache.
A:Do you have a cold?
B:How do you do?
C:What are you like?
D:What's the matter with you?
This____ ____sweater is still too long for her
如图所示,体积相同的A、B、C三个球,则它们所受浮力最大的是( )
唐朝的开放与包容、兼收与并蓄,成就了唐文化的多元与辉煌。下面能佐证当时中外文化双向交流的是( )
①和亲结盟 ②鉴真东渡 ③玄奘西行 ④遣唐使来访
如图所示为静电力演示仪,两金属极板分别固定于绝缘支架上,且正对平行放置。工作时两板分别接高压直流电源的正负极,表面镀铝的乒乓球用绝缘细线悬挂在金属极板中间,则( )