After the 1960 s, China began to inoculate BCG, pertussis, diphtheria, tetanus, measles and poliomyelitis vaccines.六十年代后, 中国开始在大、中城市接种卡介苗 、 百日咳 、 白喉 、 破伤风 、 麻疹、脊髓灰质炎的疫苗的工作....a program to inoculate every child in the sta...
A corps of doctors arrived to inoculate the recruits.一队医生来给新兵打防疫针.After the 1960 s, China began to inoculate BCG, pertussis, diphtheria, tetanus, measles and poliomyelitis vaccines.六十年代后, 中国开始在大、中城市接种卡介苗 、 百日咳 、 白喉 、 破伤风...
Weak acids ionize partly ( ionize ) in water to give hydrogen ion.弱酸在水中部份电离 ( 电离 ),放出氢离子.Weak alkalis ionize partly ( ionize ) in water to give hydroxide ion.弱碱 在水中部份电离,放出氢氧离子.Most inorganic salts ionize in water solutio...
After much difficulty and jolting, they reached the gate.费了不少周折, 他们方到达大门.This is perhaps the most jolting comment of all.这恐怕是最令人震惊的评论。The massive blasts shook windows throughout the city, jolting sleeping residents awake...
We're going to build the Doomsday Machine and conquer the world.我们将建起世界末日时光机来征服整个世界.If they stop , the blimps switch to a doomsday program.使得飞行船上的程式启动那该怎么办?But the financial system would remain a doomsday machine.但金...