当x=______时,|x+1|+2取得最小值.
∵|x+1|≥0,
∴当|x+1|=0时,|x+1|+2的值最小;
即当x=-1时,|x+1|+2取得最小值.
腺苷降压的特点不包括()。
A.起效快
B.无快速耐受性
C.反跳性心率增快
D.无反跳性高血压
E.不增加肾素活性
I took the medicine but it didn't have any ___.
A.answer
B.cause
C.work
D.effect