【简答题】If someone is lost in a forest( 森林 ), he needs only study the trees around him carefully to find his way. On this half of the earth, he will find that the side of the tree with the most leaves and bra...
【单选题】Ralph pays someone to mow his lawn, while Mike mows his own lawn. Regarding these two practices, which of the following statements is correct?
A.
Only Ralph’s payments are included in GDP.
B.
Ralph’s payments as well as the estimated value of Mike’s mowing services are included in GDP.
C.
Neither Ralph’s payments nor the estimated value of Mike's mowing services is included in GDP.
D.
Ralph’s payments are definitely included in GDP, while the estimated value of Mike’s mowing services is included in GDP only if Mike voluntarily provides his estimate of that value to the government.