工人叔叔架设一路电路,前3天架设了186米,照这样的速度,又架设了5天,正好完成任务,这条电路有多长?
186÷3×(3+5),
=62×8,
=496(米);
答:这条电路长496米.
We're just trying to reach a point both sides will sit down together and talk. [ ]
A.where
B.that
C.when
D.which
脱出性牙脱位的临床表现之一是
A.牙冠较邻牙短
B.牙冠较邻牙长
C.牙齿没有松动
D.牙冠呈粉红色
E.牙髓测验敏感