多项式a2+2ab+b3的次数为______．
多项式a2+2ab+b3中的次数b3次数最高，因此多项式a2+2ab+b3的次数是3．
_____ that's important is that you are doing your best and moving in the right direction. [ ]
A. One
B. All
C. Everything
D. Anything
油气分配系数大的吸入麻醉药
A．诱导慢
B．诱导快
C．麻醉作用弱
D．麻醉作用强
E．麻醉苏醒快
