患者，男，活髓牙，牙冠小，间距离过低，要求金属烤瓷全冠修复，如要兼顾咬合和美观，下列

读短文，补全句子。

    It's Saturday today. It's seven in the morning. My mother is doing morning exercises and my father  is  

cooking  breakfast. Grandpa is reading the newspaper. Grandma is watering the flowers. My brother Jack

is still sleeping. I'm writing an e-mail to my new friend, John. We are ready for the weekend.

1._______ reading the newspaper.

2._______ writing an e-mail.

3._______ sleeping.

4._______ cooking breakfast.

5._______ doing morning exercises.

编制投标文件最少所需的合理时间不应少于______。

A．10 日

B．14 日

C．20 日

D．30 日

在我国古代，关于怎样对待欲的观点，柳宗元主张（），反对（）。

海地区政府在送交行政复议决定书时，未告知韩琴诉权和起诉期限，则韩琴的起诉期限最长是多久

钛冷温度高将会造成什么结果？