【单选题】Until 2007, the price of sport utility vehicles (SUVs) rose and each year more were purchased. This experience suggests that
A.
there must have been technological advances in the way SUVs are produced.
B.
the law of demand does not hold true in this market.
C.
there must have movement leftward along the supply curve for SUVs.
D.
there must have been a rightward shift of the demand curve for SUVs.
【单选题】因扰乱体育比赛秩序被处以拘留处罚的,可以同时责令其( )内不得进入体育场馆观看同类比赛。
【判断题】机器作周期变速稳定运转,必须在每一瞬时驱动功率等于阻抗功率。
【单选题】在学习旅游地理诸多方法中,( )能够产生新的体验。
【判断题】1858年,美国的生态文学家,《瓦尔登湖》的作者梭罗(Henry David Thoreau)在与友人的书信来往中首次使用了“Ecology” 也就是生态学这一词。
【判断题】机器作周期变速稳定运转,必须在每一瞬时驱动功率等于阻抗功率。
【单选题】在音频数字化的过程中,对模拟语音信号处理的步骤依次是()
【单选题】病人,女性,卵巢癌术后,拔出尿管后7小时未能自行排尿。查体:耻骨上部膨隆,叩诊呈实音,有压痛,考虑尿潴留。首次导出尿液不应超过: