【简答题】高层建筑采用分区减压给水方式时,为了防止底层水管压力过大应在管道上安装 。
【多选题】关于食用菌营养价值,叙述正确的是 ( )
【简答题】高层建筑采用分区减压给水方式时,为了防止底层水管压力过大应在管道上安装 阀 。
【简答题】2015年10月18日,中央颁布实施新修订的两项党内法规是 和 。
【多选题】在vi模式下,哪个命令不能用来删除光标处的字符()?
【单选题】What did they do when they saw a bear enter their tent?
A.
They chased the bear away.
B.
They stayed outside the tent and did nothing.
C.
They climbed up a tree.
D.
They put some honey outside for the bear to eat.