作业警戒区内应()监测周围环境的燃气浓度。
A、隔十分钟
B、隔三十分钟
C、隔一小时
D、随时
参考答案:D
根据描述,写出图中所缺物品的名称.(每空一词)
Hello! This is my room.A table,a bed,a chair,a desk and a bookcase are in the room.Some plants
are on the table.My backpack is on the desk.My hat is on the chair.My shoes are under the bed.My baseball is on the floor.And those are my books.They are in the bookcase.
1._______ 2._______ 3._______ 4._______ 5._______
下列词语中没有错别字的是[ ]
A.旁骛 睿智 脊梁 一番风顺
B.阴晦 恣睢 省悟 根深帝固
C.喑哑 阔绰 赔偿 格物致知
D.佝偻 祷告 禁固 饱经沧桑