单选：（）有着可变的焦距，从广角镜头到正常镜头再到望远镜头或反之。A．望远镜头B．广角镜头C．变焦镜头D．运动镜头

请阅读短文。Do who choose to go on exotic, far-flung holidays deserve free health...

What's the starting point and destination of English course?

政法工作为大局服务，必须保障和服务社会主义政治建设，坚决维护（）。A．人民民主专政B．人民代表大会制度C．中国共产党领导的多党合作和致治协商制度D．民族区域自治制度

Mother's Day is thought to __________in the 19lOs, isn't it?

It was 10 o'clock __________ Jill arrived at the office, which made the boss...