I have a good friend from Australia. Her name is Laura. Here is a photo of her family.

    There is a nice girl and a1boy in the photo. The boy is her brother David. Laura is thirteen2, David is ten.3 do they look like? Laura is not fat and she is not thin4. She is of medium build. She has a round5like an apple. Her mouth is small, but her eyes are big. Her hair is6and blonde. Laura likes purple and she is often in purple clothes. She7being a singer. What about David? He is a little thin. David doesn't like8. His favorite color is green. David wants to be an actor. They like9movies very much. They often go to the cinema when they are free. It's relaxing for10to see a movie. You can also see a black dog in the photo. It's their pet dog Cici.

  12的全部因数有____

舌表面密布许多小凸点，内藏____，其内有许多____细胞。

清政府签订了一系列不平等条约，一步步沦为半殖民地半封建社会。请做出正确搭配：

①签订《南京条约》____    ②签订《北京条约》，火烧圆明园____

③签订《马关条约》____    ④签订《辛丑条约》____

A．毁坏了中华文明的滔天罪行     B．中国完全沦为半殖民地半封建社会

C．中国近代第一个不平等条约     D．大大加深了中国半殖民地化程度