【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。()
【单选题】进行科学实验时,都必须制定实验计划,以确保实验顺利完成。实验计划包括 [ ]
【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. [ ]