【单选题】It be difficult to get a train ticket during traditional Chinese Spring Festival this year because there are many ticket windows. [ ]
【单选题】若甲单位的平均数比乙单位的平均数小,但甲单位的标准差比乙单位的标准差大,则( )。
【判断题】在汽车空调系统中,由 压缩机输出端,高压管路,冷凝器,储液干燥器,液体管路,膨胀阀的进口端构成高压侧 。
【单选题】They wanted to get paid before the Spring Festival, but it didn't quite ________ as planned.
【判断题】保护关税是指以保护本国产业为主要目的而征收的关税。
【判断题】在汽车空调系统中,由压缩机输出端,高压管路,冷凝器,集液器,液体管路,膨胀阀的进口端构成高压侧。