Dg50表示公称直径为()。
参考答案:50mm
近年来国务院的重大决策特别是涉及民生的重要事项,都以适当方式听取人民群众、民主党派、专家学者和社会各界的意见。这表明我国公民依法享有[ ]
A.选举权
B.立法权
C.建议权
D.决定权
Based on the concept of diminishing returns, as the quantity of output increases, the short-run marginal costs of production eventually:()
A. rise at a decreasing rate.
B. rise at an increasing rate.
C. fall at an increasing rate.