D

In recent years, smog has become a hot word all over China. For instance in January, Beijing saw only five days without smog. The rising PM 2. 5 readings terrified many people, and some health experts said that whenever the smog gets serious, hospitals receive more patients suffering acute respiratory  (呼吸道的)  and heart diseases.

Later, news of polluted underground water in some provinces scared people who wondered whether the water they drink is safe.

So the need to emphasize environmental protection while developing the economy is heard everywhere.

Smog especially is a common concern. As a popular online post said, air may be the only thing that is equal for everyone. despite your income or vocation. People with higher incomes are able to drink only bottled spring water and eat only organic food by paying higher prices, but they breathe the same air as everyone else.

At an important meeting, many representatives have expressed their concerns about the air quality, too. One talked about his experience in Beijing "After taking a taxi from the capital airport to my hotel, which took about an hour. I washed my nose and found the inside of my nose was black. We should ask ourselves this question: Why do we want to develop? It's for living a better life. Dirty  air is definitely not a better life. " he said.

China needs to develop its economy and invest in  high-tech. Every Chinese wants a strong country. But without blue sky, clean water and safe food, the achievements in the economy will become meaningless. Space technologies are not to be developed for building a base on Mars so that one day all  human beings can migrate to the red planet because they have destroyed the Earth.

What the public wants  is a strong and beautiful China. President Xi Jinping spoke at the 18th Party Congress last November saying that great efforts must be made to promote ecological progress and build a beautiful China. The words have shown the central government's resolution to address the environment issue.

68. The effect of smog doesn't include _____ .

A. the rising of FM 2. 5 readings               B. the increase of people's income

C. more people suffering diseases              D. patients increased in hospital

69. Why has smog become a common concern according to the passage?

A. Because we have to pay higher prices.

B. Because we have to develop industry.

C. Because nobody can avoid it.

D. Because a popular online post discussed it.

70. From the last two paragraphs we can infer that_______.

A. we must protect the environment while developing economy

B. space technologies should be developed in a large scale

C. we can move to the Mars after the earth has been destroyed

D. high-tech can completely solve the problem of pollution