The famous writer William Shakespeare was born 1564. [ ]
A. in
B. on
C. at
D. of
答案:A
关于舒张性心衰的治疗,下列哪项不正确()
A.β受体阻滞剂
B.洋地黄
C.ACE抑制剂
D.钙通道阻滞剂
E.利尿剂
传感器的作用点在铅垂方向距被推丁砖下表面之上的距离,普通砖应为()
A.10mm
B.15mm
C.20mm
D.40mm