从理论上讲，数控机床刀具的运动轨迹是（）
A.直线
B.圆弧
C.折线
D.曲线
参考答案：C
卡托普利主要通过抑制___酶，使血管扩张以发挥降压作用。
To get my traveler’s cheques I had to ______ such a special cheque to the bank for the total amount. A. make for B. make out C. make up D. make over
