A:短波通讯中断
B:信鸽丢失
C:指南针失灵
D:地球公转速度的变化
Julia isn't going to the cinema with us because she ____________ the film.
有一种沙漠蜥蜴,在体温28℃时体色灰绿,随着体温的升高而逐渐变蓝和鲜亮,体温超过35℃时则呈现艳丽的黄色.这一事实表明( )