切断传播途径的措施是
A.早期诊断、隔离并彻底治愈患者B.注意营养,锻炼身体C.彻底消毒疾病源地D.广泛接种疫苗E.注射抗毒素或丙种球蛋白
参考答案:C
English differs greatly _____ Spanish _____ pronunciation. [ ]
A. with; in
B. from; in
C. to; with
D. from; with
氯气干燥塔中,浓硫酸从()进,从()出。