Quiz về Biến và Câu lệnh Gán

What is a variable?

• Name of a constant.

• Name of a value.

• Name of a memory area.

• Name of a data type.

Which is not a rule for naming variables in Python?

• Cannot be the same as a keyword.

• Must start with a letter or '_'.

• Cannot start with an uppercase letter.

• Can only contain letters, numbers, and '_'.

Which is not a characteristic of high-level programming languages?

• Many words.

• Close to natural language.

• Simple syntax.

• Single-valued semantics.

Assigning a value to a variable is done by?

• Assignment operator.

• Assignment statement.

• Equal statement.

• Initialization statement.

The simplest form of an assignment statement in Python is?

• Variable =

• Variable: =

• Variable = Expression

• Variable = Value

Arithmetic expressions are commonly found in?

• Left side of an assignment.

• Right side of an assignment.

• Middle part of a program.

• End part of a statement.

The expression (x+y)² in Python is?

• (x**2+y**2)

• (x+y)***2

• (x+y)*2

• (x+y)**2

The expression (xy+x):(x-y) in Python is?

• (xy+x)/(x-y)

• (x*y+x)//(x-y)

• (x*y+x)/(x-y)

• (x*y+x)/x-y

The expression (3.2 +2x-1):(4-x) in Python is?

• 3*2 + 2*x -1 / 4 - x

• (3*2 + 2*x -1)/(4 - x)

• 3*2 + 2*x -1/(4 - x)

• (3*2 + 2*x

The expression (3.2 + 2x - 1):(4 - x) in Python is

• 3*2 + 2*x -1 / 4 - x

• (3*2 + 2*x -1)/(4 - x)

• 3*2 + 2*x -1/(4 - x)

• (3*2 + 2*x -1)/4 - x