os.popen takes two arguments—________and_________ .
a) the shell command to execute, the function to call.
b) the shell command to execute, the mode to use when calling the function.
c) the function to call, the shell to use.
d) None of the above.
b) the shell command to execute, the mode to use when calling the function.
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Which of the following statements is false?
a. A primitive-type variable can store exactly one value of its declared type at a time. b. Primitive-type instance variables are initialized by default. c. Variables of types byte, char, short, int, long, float and double are initialized to 0. d. Variables of type boolean are initialized to true.
Which of the following statements are true?
a. A Scene is a Node. b. A Shape is a Node. c. A Stage is a Node. d. A Control is a Node. e. A Pane is a Node.