[多选题]装设临时接地线的顺序是( )。
A.先接接地端
B.后接相线端
C.先接相线端
D.后接接地端

One day a police officer manager to get some fresh mushrooms. He was so pleased with what he had bought that he offered to{{U}} (47) {{/U}}the mushrooms with his brother officers. When their breakfast arrived the next day, each officer found some mushrooms on his plate,
"Let the dog{{U}} (48) {{/U}}a piece first," suggested one careful officer who was afraid that the mushrooms might be poisonous. Tile dog seemed to{{U}} (49) {{/U}}his mushrooms, and the officers then began to eat their meal saying that tile mushrooms had a very strange but quite pleasant taste.
An hour later, however, they were all astonished when the gardener rushed on and said{{U}} (50) {{/U}}the dog was dead. Immediately, the officers jumped into their ears and rushed into the nearest hospital. Pumps (泵) were used and the officers had a very{{U}} (51) {{/U}}time getting rid of the mushrooms that{{U}} (52) {{/U}}in their stomachs. When they{{U}} (53) {