横密：沿线圈横列方向，以（）来表示。
参考答案：50mm内的线圈纵行数
为羟化反应提供氢的是
A．NADHB．NADPHC．细胞色素aa3D．细胞色素bE．泛醌
— What do you do on the farm?
— My job is to feed (喂养) the animals, such as and . [ ]
A. horses, sheeps
B. horse, sheep
C. horse, sheeps
D. horses, sheep
