心尖搏动向左下方移位的是（）
A.左心室肥大
B.右心室肥大
C.左心房肥大
D.右心房肥大
E.左右心室肥大
参考答案：A
—Do you think our basketball team played very well yesterday?
—_________.
A．They were not nervous at all.
B．They couldn’t have done better.
C．They played naturally
D．They were still young.
某叉车货叉水平段长1.2米，其载荷中心距为（）米。
A.0.6
B.1.2
C.1
D.0.9
