-- How does drought _______ in Yunnan? -- It hasn’t rained for almost 300 days there. The avera
A.
25. -- How does drought _______ in Yunnan? -- It hasn’t rained for almost 300 days there. The average temperature rises _____ 5 degrees. A.come about / by
【单选题】An economy’s production function has the constantreturnstoscale property. If the economy’s labor force doubled and all other inputs stayed the same, then real GDP would
A.
stay the same.
B.
increase by exactly 50 percent.
C.
increase by exactly 100 percent.
D.
increase, but not necessarily by either 50 percent or 100 percent.