首过消除常发生的给药途径是()
A.口服
B.肌注
C.舌下含服
D.静注
E.皮下注射
参考答案:A
The task is very difficult. I wonder whether we will be able to finish it in the ________ of any other helpers.
A.appearance
B.escape
C.spare
D.absence
以下哪项不属于财政政策工具:()
A、税收
B、公债
C、公共支出
D、企业投资