Instead of you ___ on me. I should wait on you.
A.wait
B.waited
C.waiting
D.be waited
答案:C
某患者,男,78岁,诊断为“真心痛(急性心肌梗死合并左心衰)”,发病在24h内,现治疗心衰宜选用
A.西地兰B.地高辛C.多巴酚丁胺D.β受体阻滞剂E.毒毛旋花子苷K
在调整钢索的松紧螺套时,钢索的端杆进入不可超过几个螺纹()
A.二个
B.三个
C.四个