How did Christopher Beard defend his company' s labeling practice?
A. There were no clear guidelines concerning green labeling.
B. His company' s products had been well received by the public.
C. It was in conformity to the prevailing practice in the market.
D. No law required the involvement of a third party in certification.
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What does Kevin Wilhelm imply by saying“It' s kind of a Wild West”(Lines 2-3, Para. 11)?
A. Businesses compete to produce green products.
B. Each business acts its own way in green labeling.
Consumers grow wild with products labeled green.
D. Anything produced in the West can be labeled green.
土的饱和度是( )之比。
A. VW与Vv
B. VW与V
C. VV与V
D. VV与VS
判别黏性土硬软状态的指标是( )
A. 塑性指数
B. 液性指数
C. 压缩系数
D. 压缩指数
土中所含“不能传递静水压力,但水膜可缓慢转移,从而使土具有一定可塑性的水”称为
A. 强结合水
B. 自由水
C. 重力水
D. 弱结合水