婴幼儿食用添加三聚氰胺的奶粉易患肾结石．下列描述属于三聚氰胺化学性质的是（ ）
A．白色粉末
B．无味
C．微溶于水
D．呈弱碱性
答案：D
The children all turned_______the famous actress as she entered the classroom．
A．looked at
B．to look at
C．to looking at
D．look at
《奥德修纪》描写（）在特洛伊战争之后返家的过程。
A.阿喀琉斯
B.奥德修斯
C.赫克托耳
D.卡吕普索
