实木地板面层外观质量应采用()方法检验。
A.观察
B.敲击
C.手模
D.脚踩
E.试验
参考答案:A, C, E
根据句意和首字母提示填空,完成下列句子。
1. Please p_____ the apple for the babies before they eat them.
2. It’s wasteful to p_____ the clean water into the river.
3. I don't like to drink pure milk, but I like y_____ .
4. First put the oranges into the b_____ .
After a while you can drink orange juice.
5. Put some relish on two s_____ of turkey.
安全压杠行程应无级或有级调节,压杠在压紧状态时端部的游动量不大于()mm。
A、25
B、30
C、35
D、40