改错题现代产品是一个整体概念，包括三个层次。产品的造型和包装属于产品核心层。( )
改错题( ) In sociolinguistics，speech community refers to a group of speakers who constitute a community and share the same language or a particular variety of language．Speakers of English in general might be treated as such a community.
改错题Office stationery may be very expensive depend on the quality of paper and printing prices.
改错题与观察法收集资料的方式相比，调查法是一种直接的研究方法。
改错题The machines arrived today, we plan to install them next week.
改错题验证性教育实验以创新为研究目的，是一种富有开拓性的实验研究。
改错题市财政局可向市教育局发文，布置教育系统年终财务大检查工作。
改错题学前教育科研可以随意打乱学前教育机构的正常教育活动。
改错题在“实现幼儿玩具系列化促进幼儿智力发展”的实验研究中，幼儿年龄的自然增长是实验的自变量。
改错题
改错题Despite there are ten managers, only the Managing Director has the decision-making power.
改错题结算按所使用的支付结算工具不同，分为票据、信用卡和银行结算方式三大类。( )
改错题Which articles are more marketable in those countries are important to us.
改错题These womens’ garments are newly designed and quite in style.
改错题企业融资租入的固定资产在管理上不能按自有固定资产提取折旧。( )
改错题Comparing with the same type of products of other companies, your product is the best.
改错题工程质量、造价、工期等指标在建筑设计方案评价中不分工程对象、建设地点和时间，始终是主要评价指标。
改错题Stokes said that he wanted to recheckhis figures if he can find time.
改错题Countries that neglect an education will be severely restrained in economic development.
改错题所有的票据既是结算工具，也是融资工具。( )