心尖搏动向左移位的是（）
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：B
—Oh, my God! I can’t find my key to the office.
—Don’t worry. Perhaps it______________ in your home.
A. left B. has left C. was left
工作区域内应将所有油污及一切外物清除干凈。
