地高辛的t1/2为33h,若每日给予维持量,则达到稳态血药浓度约需:
A.9dB.10dC.3dD.12dE.7d
参考答案:E
—Your school is really wonderful.
—Yes, it’s very modern. And every student has free ________ to the school library.
A.access
B.chance
C.privilege
D.right
呼吸作用的实质是( )
A.分解有机物,释放能量,放出二氧化碳
B.分解有机物,储存能量,放出二氧化碳
C.制造有机物,释放能量,放出二氧化碳
D.制造有机物,储存能量,放出二氧化碳