观察营养状态最简便而迅速的方法是
A．观察毛发稀疏程度B．以上都不是C．观察皮肤的弹性D．观察皮下脂肪充实程度E．观察肌肉松弛程度
参考答案：D
Asp模式
- May I go to the movies with you?
- I'm afraid not ， you have a ticket, because I have only one.
A． if B. unless C. though
