【单选题】属于从性遗传的遗传病为________。
【单选题】The comminttee has anticipated the problems that ________in the road construction project.
【简答题】旅客列车上( )能够使用简单英语。A. A:空调车软卧列车员; B. B:动车组商务座列车员; C. C:列车长; D. D:餐车长;
【单选题】下列属于从性遗传的遗传病为 ___________ 。
【单选题】It is anticipated that this contract will considerably increase sales over the next three years.