维生素C缺乏引起______障碍,故可致骨有机质形成不良而导致骨质疏松。
参考答案:胶原合成
Mrs Smart is going to take her son, Clark, to see an eye doctor, but Clark has school in the morning and piano classes on Monday and Friday afternoons. And Mrs Smart is free (空闲)only in the afternoon. Here are the doctor’s office hours.
小题1:Where are Mrs Smart and Clark going?
A.They’re going to the dentist.
B.They’re going to the supermarket
C.They’re going to see the eye doctor.
D.They’re going to the zoo.小题2: When will be the best time for Mrs Smart to take Clark to see the doctor?
A.Monday
B.Tuesday
C.Wednesday
D.Friday小题3:What does Clark do on Monday and Friday afternoons?
A.he has a toothache
B.He has piano lessons
C.He goes to the doctor.
D.He has swimming lessons.小题4:How many days a week does the doctor work in the morning?
A.Two days
B.Three days
C.Four days
D.Five days小题5:Which day doesn’t the doctor work in a week?
A.Saturday
B.Sunday
C.Every day
D.Friday
男患,67岁,以"讲话不清,右侧肢体无力5天,逐渐加重2天"为主诉来诊。查体:血压148/80mmHg,神清.Broca失语,右侧肢体偏瘫。可完全除外的疾病是()。
A.脑栓塞
B.动脉粥样硬化性脑梗死
C.短暂性脑缺血发作
D.脑出血
E.腔隙性脑梗死