可用于治疗或预防急性心肌梗死的药物包括（）
A．尿激酶
B．华法林
C．肝素
D．噻氯匹啶
E．氨甲苯酸
参考答案：A, B, C, D
对高温作业环境的叙述，哪项是错误的
A．工作地点的气温在寒冷地区超过32℃
B．工作地点的气温在一般地区超过32℃
C．工作地点的气温在炎热地区超过36℃
D．工作地点的气温在30℃以上，相对湿度超过80%
E．工作地点的热辐射强度超过4．18J/(cm 2•mi
Every painting she ______ to her country, which was her will. [ ]
A. had been contributed
B. had to be contributed
C. had contribute
D. had was contributed
