从1980年起,每年举办国际风筝节的城市是( )。
A.北京
B.天津
C.江苏南通
D.山东潍坊
参考答案:D
--- Why did you call the police?
--- I got home and found my house _____.
A.broken up
B.broken down
C.broken in
D.broken out
标准对称偶极子天线增益为()。
A.5dBi
B.4.25dBi
C.3dBi
D.2.15dBi