加工中心一个重要特征是()。
A.有ATCB
B.有机械手
C.有回转工作台
D.有交换工作台
参考答案:A
— What do you think of the film?
— Fantastic. ______ the children ______ their father likes to see it.
A.Both; and
B.Either; or
C.Not only; but also
D.Neither; nor
肺动脉高压描述错误的是
A.右室压力负荷增加
B.右房室增大
C.左室壁增厚
D.室间隔运动异常
E.右室壁增厚