下列哪些病原体能引起STD
A．淋球菌
B．HIV
C．沙眼衣原体
D．梅毒螺旋体
E．雅司螺旋体
参考答案：A, B, C, D
Under the labour laws of Pakistan:
(b) with reference to the Workmen’s Compensation Act, 1923 state:(i) the purpose of the Act; and (3 marks)(ii) the scope of the employer’s liability under the Act. (4 marks)
某地区有部分儿童出现智力低下，生长发育迟缓，应重点考虑
A．汞中毒B．铅中毒C．砷中毒D．克汀病E．氟中毒
