根据句意，写出划线词的对应词或反义词。

1. His first name is John, and his _____ name is Brown.

2. _____ your pictures here. Take the books there.

3. Linda is my _____ , and Clark is my uncle.

4. Ask and _____ these questions.

5. The parents have a son and a _____ .

船舶航行于冬季环境温度较低的地方，应选用凝固点（）的液压油。

A.低

B.适中

C.高

D.极高