混凝土面板宜采用单层双向钢筋，钢筋宜置于面板截面( )。
A．边缘部位 B．上部C．下部 D．中部
参考答案：D
下列有关资本成本的说法中，不正确的有（）。
A.留存收益成本=税前债务成本+风险溢价
B.税后债务资本成本=税前债务资本成本×（1-所得税税率）
C.历史的风险溢价可以用来估计未来普通股成本
D.在计算债务的资本成本时必须考虑发行费的影响
根据汉语提示，用单词或词组的适当形式填空。
1. It is cold outside. We must keep all the windows _____ (关).
2. The weather today is good for _____ (钓鱼).
3. The coat is too expensive. I'll _____ _____ (考虑) it.
4. You must come to school _____ _____ (按时).
5. Is there a _____ _____ (邮局) near here?
6. Don't _____ _____ (嘲笑) people when they are in trouble.
7. We must learn to ____ _____well with others.
