在安装天线时方位角的误差范围为()。
A.正负5度
B.正负3度
C.正负10度
D.正负1度
参考答案:A
Mary , _______ for her healthy lifestyle , was pictured on the front cover of Life Style magazine .
[ ]
A. knowing
B. to know
C. known
D. being known
传统贮存方法有()、()、()、()、()。