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{{B}}TEXT B{{/B}}

We all know that programming language is the system of syntax, grammar, and symbols or words used to give instructions to a computer. Because computers work with binary numbers, first-generation languages, called machine languages, required the writing of long strings of binary numbers to represent such operations as add. subtract, and compare. Later improvements allowed octal, decimal, or hexadecimal representation of binary strings. It is difficult to write error-free programs in machine language many languages have been created to make programming easier and faster. Symbolic, or assembly, languages—second-generation languages—were introduced in the early 1950s. They use simple mnemonics such as "A" for add or "M" for multiply, which are translated into machine language by a computer program called an assembler. An extension of such a language is the macro instruction, a mnemonic (such as "READ") for which the as
A. it is used in designing software.
B. it is hardware-independent.
C. is should be translated into the computer language by software.
D. it is designed to solve some specific problem.

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{{B}}TEXT B{{/B}}

We all know that programming language is the system of syntax, grammar, and symbols or words used to give instructions to a computer. Because computers work with binary numbers, first-generation languages, called machine languages, required the writing of long strings of binary numbers to represent such operations as add. subtract, and compare. Later improvements allowed octal, decimal, or hexadecimal representation of binary strings. It is difficult to write error-free programs in machine language many languages have been created to make programming easier and faster. Symbolic, or assembly, languages—second-generation languages—were introduced in the early 1950s. They use simple mnemonics such as "A" for add or "M" for multiply, which are translated into machine language by a computer program called an assembler. An extension of such a language is the macro instruction, a mnemonic (such as "READ") for which the as
A. began using binary numbers
B. was used to implement the Unix operating system .
C. was put into the market
D. was used for modeling physical and environmental events

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[简答题]We all know that we should take better care of ourselves, relax more, and have more fun at work (and elsewhere, as well) , but it’s easy to overlook the opportunities to do just that be cause of the daily work priorities that consume our lives. Here are some ideas for learning to take action in your work life.

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{{B}} How Swearing Works{{/B}}
We all know what "bad words" are. Unlike most other language rules, we learn about swearwords and how to use them without any real study or classroom instruction. Even very young children know which words are naughty, although they don’t always know exactly what those words mean.
But swearwords aren’t quite as simple as they seem. They’re paradoxical-saying them is taboo in nearly every culture, but instead of avoiding them as with other taboos, people use them. Most associate swearing with being angry or frustrated, but people swear for a number of reasons and in a variety of situations.
{{B}}Origin and Varieties of Swearwords{{/B}}
Virtually every language in every culture in the world has its own unique swearwords. Even different dialects of the same language can have different expletives. The very first languages probably included swearwords, but since writing evolved after s
A. Because writing evolved after speaking.
B. Because of the taboos surrounding it.
C. Because of the varieties of swearwords.
D. Because few studies have examined swearing.

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We all know that DNA has the ability to identify individuals but, because it is inherited, there are also regions of the DNA strand which can relate an individual to his or her family (immediate and extended), tribal group and even an entire population. Molecular Genealogy (宗谱学) can use this unique identification provided by the genetic markers to link people together into family trees. Pedigrees (家谱) based on such genetic markers can mean a breakthrough for family trees where information is incomplete or missing due to adoption, illegitimacy or lack of records. There are many communities and populations which have lost precious records due to tragic events such as the fire in the Irish courts during Civil War in 1921 or American slaves for whom many records were never kept in the first place.
The main objective of the Molecu
A. DNA is characteristic of a region
B. they are beyond doubt of common ancestry
C. DNA strand has the ability to identify individuals
D. their unique identification can be provided via DNA

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We know that we have to pay for what we get. If we buy food, we know there will be a bill to pay. These are private bills. But there are also public bills that must be paid. Public bills are paid by the government. In turn, we get these services through taxes. What would happen if everyone in the city stopped paying taxes The water supply would stop; water might become unclean and impure. The streets might not be cleaned. There would be no police force to protect people and property. Schools would be closed. People would become sick and diseases might spread. We should not want to live in such a city. We all want pure water and food, clean streets and good schools. We want the police to prevent crime. The chief duty for every government is to protect persons and property. More than three quarters of the money spent by our government is used for this purpose. The next largest amount of public money goes to teach and train our citizens. Billions of dollars each year are spent on sc
A. Education.
B. Administration.
C. Public security.
D. Transportation.

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