指药物经血管外给药后，药物被吸收进入血液循环的速度和程度（）.

A．潜伏期

B．表观分布容积

C．半衰期

D．清除率

E．生物利用度

The demand for oil is more inelastic in the short-run than the supply of oil, but it is not perfectly inelastic. Based only on this factor, if the government imposes a $ 5.00 per barrel tax on oil producers :（）

A. The incidence of the tax will fall most heavily on oil producers, because the tax is imposed directly on them.

B. The incidence of the tax will be split between oil producers and oil consumers, with most of the tax being paid by oil producers.

C. The incidence of the tax will be split between oil producers and oil consumers, with most of the tax being paid by oil consumers.