This is the Blue - throated, a beautiful bird and magnificent flyer.照片上这种是蓝喉的, 华美的一种鸟.In May of that year, Wilbur sailed to France to demonstrate their new Type A Flyer.那年5月, 威尔伯乘船到法国展示他们新型的“A型飞行器”.They were part of the ...
They were part of the black box associated with high-flyer management development.它们是与储备主管培训相关的神秘体系的一部分。They called the plane Flyer 1.他们把这架飞机命名为“飞行器1号”.In May of that year, Wilbur sailed to France to demonstrate their ne...
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.Anti-malarial vaccines are now under-going trial...