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
关于摇镜头的描述，不正确的是：
A. 摄像机位不动，只有机身做上下或左右的运动
B. 摇镜头的落幅一定要有目的性，不能漫无目的地摇摄
C. 摇镜头只能用的小景别，大环境时
D. 摇镜头突破了画面框架的限制，可以展现固定镜头所难以表面的空间范围。
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