【判断题】只要符合负债的定义,就可将一项现时义务确认为负债。( )
【单选题】We should try not to use plastic bags,because they will____pollution for our soil.
【单选题】We shouldn't use plastic bags. We should take our own bags ___.And we also should walk ___driving to the supermarket.
【单选题】Don't use plastic bags when you go ______.
【单选题】______ you use plastic bags, you mustn’t throw them about.
【判断题】登高作业安全用具试验主要是拉力实验,实验周期为一年。()
【多选题】find environmental behavior 1.use plastic bags 2.use cloth bags 3.ride bicycle 4.plant trees 5. use disposable dinnerware 6. sort refuse 7.use public transport 8.protect wildlife
【简答题】登高作业安全用具的实验主要是拉力试验,实验周期是一年。()
【单选题】You mustn't _______ them everywhere _______ you use plastic bags. [ ]