水平灰缝以及竖向灰缝的厚度应当以（）为最佳，其波动可以允许在（）之间。
According to the text, genetically modified foods______.
A. will be refused by the public
B. will be of benefit to people"s health
C. still have a long way to go
D. will soon be sold in supermarkets
Keith Mitchells plan to close more libraries had to be aborted mainly because______.
A. he underrates the status enjoyed by the public library in British society
B. he overlooks cuts to more urgent public services like social care
C. he overestimates the decline of visits to library in the past years
D. he overstates the advantages brought by library closure
微信支付 
支付宝支付