以下哪个药不直接兴奋延脑而是反射性兴奋延脑呼吸中枢()
A.尼可刹米
B.回苏灵
C.山梗菜碱
D.咖啡因
E.哌甲酯
参考答案:C
---Tom, do you know where Jiayou supermarket is?
---Sorry. This city is unfamiliar ________ me. You can ask Bill. He is familiar ________ this place.
A.to; to
B.with; with
C.to; with
D.with; to
用于衡量项目清偿能力的主要指标有( )。
A.净现值率
B.动态投资回收期
C.速动比率
D.流动比率
E.资产负债率