The cause for the heat in interior of the earth is______.
A. radioactive elements
B. the great pressure of the earth
C. not determined
D. the heat remaining from the formation of the earth
According to the writer, which one of the following is NOT true？
A. Division of labor can enable fewer people to make more pins.
B. Division of labor helps people to produce more of what they already have.
C. Division of labor is responsible for economic growth.
Division of labor is an efficient way of organizing work.
执行下列程序时，会产生什么异常 public class Test{ public static void main(String args[]){ int d=101； int b=220； long a=321； System．out．println((a-B)/(a-b-D))； } }
ArrayIndexOutOfBoundsException
B. NumberFormatException
C. ArithmeticException
D. EOFException
According to the passage, man will begin to think about such needs as housing and clothing
A. he has saved up enough money
B. he has grown dissatisfied with his simple shelter
C. he has satisfied with his hunger
D. he has learned to build houses
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