《素问•脉要精微论》提出诊病的最佳时间是（）
A.夜半
B.日中
C.平旦
D.黄昏
参考答案：C
用所给单词的正确形式填空。
1. I would like some (sugar).
2. It's a (snow) day.
3. It's hot today. Let's go (swim).
4. What colour is (Mary) hat?
5. They (not go) to school tomorrow.
门式钢管脚手架高度超过（）米时，应在脚手架的外侧边缘设置剪刀撑。
A.20
B.24
C.30
D.50
