抬空放置更安全。
puting it to work in vocabulary instruction, we can find there are some defects in traditional methods.据此可以对传统词汇教学进行分析,找出其不足,并寻求正确的词汇教学策。
puting forward and establishing distance education technology standardization can solve above-mentioned problems well.远程教育信息技术标准的提出和制定可以很好地解决上述问题。