男性,68岁,2周前曾发生急性心肌梗死,现出现心前区跳动性疼痛,闻及心包摩擦音,肌钙蛋白正常,治疗首选()
A.异烟肼
B.阿司匹林
C.糖皮质激素
D.地高辛
E.呋塞米
参考答案:C
Having concentrated for a long time he ____ his work, made some coffee and talked with his colleagues.
A.put on
B.put aside
C.put off
D.put back
比例尺的表示方式有______、______文字式.