题目内容：

    When Emma Yang was 7 or 8 years old, her grandmother got Alzheimer's disease（阿尔茨海默病）. It made her grandmother lose her memory. She couldn't even know her own family members.Yang, now 14, decided to create an app to help people with this disease.

Her app is called Timeless. It uses facial recognition technology. Alzheimer's patients can use the app to look at photos of their friends and family. The app will tell them who the person is and how they recognize（认出）someone in the same room; they can take pictures and the app will try to identify them.

Yang got the idea after seeing how facial recognition is used in different areas, especially in health care. She worked with a tech company to create the facial recognition software that her app used. She learned to code（编码）for the iPhone for the first time in the process.

The app is still in development. Yang is trying to raise money through crowdfunding（众筹）so that she can take the next step. Though some may think that the app is too hard for older people to use, Yang is hopeful. “If you introduce it to them right away, it's actually possible for them to use it and it can really benefit their lives,” she said.

Memory expert Katherine Possin agreed. Possin said looking at photos on the app can help patients feel more social. It can also improve their memory, she added.

1.Emma Yang's app was created to help people________.

A.who like taking photos B.who have Alzheimer's disease

C.who have lost their family members D.who are too old to take care of themselves

2.What can the app Timeless do?

A.It can cure diseases. B.It can tell good strangers from bad ones.

C.It can recognize faces. D.It can talk to patients.

3.What's Yang's attitude（态度）towards Timeless?

A.Confident. B.Hopeless. C.Disappointed. D.Doubtful.

4.The last paragraph is mainly written to__________.

A.introduce a famous memory expert

B.show how popular the app is

C.explain the app's usefulness from an expert's point of view

D.show that the app also works for healthy people

5.Which of the following might be the best title for the text?

A.Facial Recognition Technology B.Alzheimer's Disease

C.Yang's Grandmother D.“Timeless” Memories