2021军招军考《军考类》真题模拟02-27

1、过点（3，－4）的直线l，其倾斜角是直线 的倾斜角的2倍，则直线l的方程是（　　）．（单选题）

A.

B.

C.

D.

试题答案：C

2、已知二次函数 有最小值－1，则a的值为（　　）．（单选题）

A. 2

B. －2

C. 2或－2

D. 以上答案都不对

试题答案：A

3、
（单选题）

A. signals

B. symbols

C. represents

D. shows

试题答案：A

4、The author can’t remember his relatives clearly because _____.（单选题）

A. he was fully occupied with observing nature

B. he didn’t live very long with them

C. the family was extremely large

D. he was too young when he lived with them

试题答案：A

5、
（单选题）

A. drove

B. stopped

C. called

D. searched

试题答案：C