引起脓胸最常见的病原体为（）。 A.肺炎链球菌 B.流感嗜血杆菌 C.大肠埃

填空。

     Finally, we arrived at the World Park. The sky was blue and __1__ was beautiful. We became very

 __2__ when we saw the model Eiffel Tower from the coach! It is made of __3__ and really tall. When

  the coach stopped, we all got off quickly. Kitty and I didn't feel __4__ any more. We just wanted to go

  into the park and enjoy__5__ . Then the real __6__ came, like bombs under the ground. The earth

 started to __7__ . People ran in all __8__ . They did not know where to go. Some people ran out of the

  shopping __9__ . I tried my best to run to the street too. People were running wildly while pieces of glass

  and bricks were __10__  down. Then the walls began to come down, too.

关于北极地区和南极地区的叙述，正确的是

A．北极地区是陆地

B．南极地区是海洋

C．北极地区被三大洋包围

D．南极地区被三大洋包围

下列程序的运行结果是______。
main()
int s=0,i=1;
while(s＜=10)
s=s+i*i;
i++;

printf("%d",--i);

下列能量的转化中，属于机械能转化为内能的是（）

A.点燃爆竹，爆竹腾空而起

B.汽车紧急刹车，轮胎发热

C.给生石灰加水，温度升高

D.给电炉通电，电炉发热

对离婚后父母与子女的关系如何规定的？