According to her friends, Minrong Yu (于敏容) is ______________.
A. an open-minded girl, but too shy to talk with friends
B. a shy and quiet girl who does not have friends
C. a quiet girl, but can be talkative when she knows her friends well
查看答案
Which of the following descriptions of Lina Shu (舒丽娜) is true?
A. She is shy and says little to her friends.
B. She talks a lot and she is fun to be around.
C. She loves to listen to her friends rather than talk with them.
20.纳米材料是指材料的显微结构尺寸均小于 ______ ，且具有某些特殊功能的材料。
19.热力学中强度性质，是指一些状态函数，如温度、密度等不具有______ 的性质。
18.单糖在水溶液中形成半缩醛环状结构，即成呋喃糖和 ______ 。
微信支付 
支付宝支付