【判断题】航空遥感又称机载遥感,是指利用飞机、飞艇、热气球等作为遥感器搭载工具的遥感技术,是由航空摄影侦察发展而来的一种多功能综合性探测技术。( )
【判断题】角接触轴承只能承受径向载荷不能承受轴向载荷的轴承
【判断题】深沟球轴承不能承受轴向载荷,只能承受径向载荷。
【简答题】阅读理解。 Mr. Fox says to Mrs. Duck, 'Mr. Hare is in the hole. You sit here and don't let Mr. Hare come out. I am going to my home to get a knife.' Mrs. Duck sits near the hole. Mr. Fox goes to his home. ...
【判断题】径向止推式滚动轴承只能承受径向载荷而不能承受轴向载荷。
【单选题】― How was your school trip? ― It was exciting. I ________ my uncle's house. He ________ in a beautiful village. [ ]
【单选题】The best title for this passage might be
A.
How to Deal with Air Pollution.
B.
Ways to Maintain a Clean Atmosphere.
C.
Argument over Burying Pollution.
D.
Environmentally Minded Oil Companies.
【多选题】航空遥感是指利用( )等作为遥感器运载工具的遥感技术,是由航空摄影侦察发展而来的一种多功能综合性探测技术。
【单选题】某新生儿,出生5天,面部黄染,血清胆红素5mg/dl,吃奶好,大小便正常,家属询问出现黄疸的原因,护士正确的回答是