1.

The last statement of each function must be a return statement.

True

False

2.When the ______ statement is executed, the variable or expression is evaluated and the resulting value is returned as the output of the function

3.What is a function library?

4.Suppose some functions have been entered into a local file named "income.js". Write the correct SCRIPT tag to load the library to a Web page.

5.How to define a function library and use the library from other Web pages?

6.

The Mosteller Formula is often used by doctors to estimate the surface area of a person's body given height and weight. The formula is as follows, where hight is assumed to be in centimeters, weight is in kilograms, and surface is in square meters:

Write a function named as getSurfaceArea, which takes height and weight as parameters, calculates and returns the surface area by applying the above Mosteller Formula.

7.

Define a function named as calcAverage, which takes score1, score2, and score3 as parameters, calculates and returns the average of the three scores.

8.

What's wrong with the following HTML document?