Problem: Please answer a question about the following article about ASCII:
Many more of the control codes have been given meanings quite different from their original ones. The "escape" character (ESC, code 27), for example, was intended originally to allow sending other control characters as literals instead of invoking their meaning. This is the same meaning of "escape" encountered in URL encodings, C language strings, and other systems where certain characters have a reserved meaning. Over time this meaning has been co-opted and has eventually been changed. In modern use, an ESC sent to the terminal usually indicates the start of a command sequence, usually in the form of a so-called "ANSI escape code" (or, more properly, a "Control Sequence Introducer") beginning with ESC followed by a "[" (left-bracket) character. An ESC sent from the terminal is most often used as an out-of-band character used to terminate an operation, as in the TECO and vi text editors. In graphical user interface (GUI) and windowing systems, ESC generally causes an application to abort its current operation or to exit (terminate) altogether.
What does modern ESC code do?
A: most often used as an out-of-band character used to terminate an operation
Problem: Please answer a question about the following article about Nanjing:
In the 1950s after PRC was established by CPC, the government invested heavily in the city to build a series of state-owned heavy industries, as part of the national plan of rapid industrialization, converting it into a heavy industry production centre of East China. Overenthusiastic in building a “world-class” industrial city, the government also made many disastrous mistakes during development, such as spending hundreds of millions of yuan to mine for non-existent coal, resulting in negative economic growth in the late 1960s. From 1960s to 1980s there were Five Pillar Industries, namely, electronics, cars, petrochemical, iron and steel, and power, each with big state-owned firms. After the Reform and Opening recovering market economy, the state-owned enterprises found themselves incapable of competing with efficient multinational firms and local private firms, hence were either mired in heavy debt or forced into bankruptcy or privatization and this resulted in large numbers of layoff workers who were technically not unemployed but effectively jobless.
The mistakes the government made during this period resulted in what type of growth?
A: negative economic growth
Problem: Please answer a question about the following article about Appalachian Mountains:
Mountains of the Long Range in Newfoundland reach heights of nearly 3,000 ft (900 m). In the Chic-Choc and Notre Dame mountain ranges in Quebec, the higher summits rise to about 4,000 ft (1,200 m) elevation. Isolated peaks and small ranges in Nova Scotia and New Brunswick vary from 1,000 to 2,700 ft (300 to 800 m). In Maine several peaks exceed 4,000 ft (1,200 m), including Mount Katahdin at 5,267 feet (1,605 m). In New Hampshire, many summits rise above 5,000 ft (1,500 m), including Mount Washington in the White Mountains at 6,288 ft (1,917 m), Adams at 5,771 ft (1,759 m), Jefferson at 5,712 ft (1,741 m), Monroe at 5,380 ft (1,640 m), Madison at 5,367 ft (1,636 m), Lafayette at 5,249 feet (1,600 m), and Lincoln at 5,089 ft (1,551 m). In the Green Mountains the highest point, Mt. Mansfield, is 4,393 ft (1,339 m) in elevation; others include Killington Peak at 4,226 ft (1,288 m), Camel's Hump at 4,083 ft (1,244 m), Mt. Abraham at 4,006 ft (1,221 m), and a number of other heights exceeding 3,000 ft (900 m).
How tall are the mountains in Maine?
A: exceed 4,000 ft
Problem: Please answer a question about the following article about Iran:
Iranian cuisine is diverse due to its variety of ethnic groups and the influence of other cultures. Herbs are frequently used along with fruits such as plums, pomegranates, quince, prunes, apricots, and raisins. Iranians usually eat plain yogurt with lunch and dinner; it is a staple of the diet in Iran. To achieve a balanced taste, characteristic flavourings such as saffron, dried limes, cinnamon, and parsley are mixed delicately and used in some special dishes. Onions and garlic are normally used in the preparation of the accompanying course, but are also served separately during meals, either in raw or pickled form. Iran is also famous for its caviar.
In Iranian cuisine, what is habitually used with fruits? 
A:
Herbs