【判断题】多层仓库充分利用土地资源,建设仓库时应完全采用多层仓库。
【判断题】机动车在高速公路上遇前方交通受阻时,应当跟随前车顺序排队,并立即开启报警闪光灯,防止追尾。
【单选题】对肠杆菌科和葡萄球菌属细菌有良好抗菌作用,但对铜绿假单胞菌无效的是()
【多选题】以下关于光纤通信和卫星通信对比,说法正确的有哪些? What are the following statements about the comparison between optical fiber communication and satellite communication are true?
A.
卫星通信的空口损耗高。 Satellite communication has high air loss.
B.
卫星通信可以实现高覆盖率但难以支持超大带宽的数据容量。 Satellite communications can achieve high coverage,but it is difficult to support the data capacity of ultra-large bandwidth.
【单选题】—When did you finish your homework last night? —A bit late, ________ my father came back home from work.
【简答题】对肠杆菌科和葡萄球菌属细菌有良好抗菌作用,但对铜绿假单胞菌无效的是( ) A庆大霉素 B妥布霉素 C奈替米星 D卡那霉素