We put some ___________ on the table.[ ]
A. dish
B. dishes
C. dishs
答案:B
In order to perform the monitor function, language learners have to satisfy at least three conditions :______to monitor his production, focus on form and clean knowledge of the rules of the target language.
A.enough speed
B.much information
C.sufficient material
D.sufficient time
吊装前,对卷扬机等电动设备再次试验,所有动作应灵敏可靠,在吊钩上加载设备重量的()。
A、10%
B、20%
C、25%
D、30%