A ____ occurs when a user clicks a button on a Web page.
A. update
B. refresh
C. postback
D. close
Answer: C
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Place the following statements (a) - (d) in the correct order in line 12 of the code shown in Figure 11.26 so that a tree image will be displayed on the canvas.
a. myContext.drawImage(obstacle, 250, 70);
b. var myCanvas = document.getElementById("gameCanvas");
var myContext = myCanvas.getContext("2d");
c. obstacle.src = "images/tree.png";
d. var obstacle = new Image();
MAC stands for ________
Fill in the blank(s) with correct word
The difference between a character entity and a numeric character reference is the latter includes a(n) ____________________ after the ampersand and the former does not.
Fill in the blank(s) with the appropriate word(s).
Progressive scaling refreshes all the horizontal lines simultaneously
Indicate whether the statement is true or false