牙尖交错位时，只与一个牙相对的牙是（）
A.
B.和
C.和
D.和
E.和
参考答案：D
用所给单词的适当形式填空。
1. Jim's father is a doctor, while ______ (my) is a teacher.
2. I went to your house yesterday, but you ______ (not) in.
3. I spent ten minutes ______ (make) the bed this morning.
4. They ______ (have) a test the day after tomorrow.
5. Mrs. White usually ______ (have) lunch at home, but she ______
(not have) lunch at home yesterday.
油管道浸泡酸洗工艺的主要过程是碱洗→酸洗→钝化。（）
.和
和
和
和
.和和和和