在紫外线照射下可转变为维生素D2的是()。
A.β-谷固醇
B.胆固醇
C.麦角固醇
D.脱氢胆固醇
E.胆酸
参考答案:C
糖尿病并发非酮症高渗性昏迷宜选用()
A.普通胰岛素
B.格列本脲
C.格列吡嗪
D.二甲双胍
E.格列齐特
Which of the following statements is the most appropriate title for the passage
Why did the United States first launch satellites into space
A.To improve navigation for warplanes and warships.B.To guide smart bombs that home in on moving targets.C.To collect meteorological data.D.To sense remote volcanic eruptions.