【单选题】Google was invented by expert in the 1980s.
【单选题】在国际货物贸易中的经营者主要是( )。 A .买方 B. 承运人 C. 保险公司 D. 卖方
【单选题】-------- 不是社会关系中的刚性调节手段。
【单选题】—Do you think Jim can manage it by himself? —________. He is expert at dealing with such a matter.
【单选题】强、平衡、灵活的高级神经活动类型对应的气质类型是
【单选题】I don’t ________ to be an expert on cars, but I do know that there is something wrong with your brakes.