以下哪项不是卡环折断的原因()
A.卡环尖进入倒凹
B.使用不当用力摘戴
C.弯制时反复调改
D.磨改过细或者厚薄不均匀
E.钢丝质量差或者铸造缺陷
参考答案:A
Little Bob is often educated by his parents to be good and friendly to anybody even if ________.[ ]
A. attacking
B. is attacked
C. to be attacked
D. attacked
音乐教学,发展宝贝的听觉,培养宝贝初步的音乐欣赏能力以及唱歌,表演的能力.所以我们在宝贝醒着的所有的时间里就给他放流行歌曲。()