【简答题】若(a 1 ,a 2 ,…,a n )=1,则(a 1 a 2 …a n ,b)=(a 1 ,b)(a 2 ,b)…(a n ,b). 若(a 1 a 2 …a n ,b)=(a 1 ,b)(a 2 ,b)…(a n ,b),则(a 1 ,a 2 ,…,a n )=1?
【单选题】Track 2-3 (12).mp3: 쁘 - 브
【单选题】刨床、平面磨床的夹具,主要用于加工( ),孔与面的位置度。
【单选题】Which of the following conditions is NOT necessary for immiserizing growth to arise in a country?
A.
The country's growth must be strongly biased toward expanding the country's supply of exports and the increase in exports must be large enough to have a noticeable impact on world prices.
B.
The foreign demand for the country's exports must be price inelastic so that an expansion in the country's export supply leads to a large drop in the international price of the export product.
C.
Before the growth, the country must be heavily engaged in trade so that the welfare loss from the decline in the terms of trade is great enough to offset the gains from being able to produce more.
D.
The country must specialize in the production of a single exportable good and import all the other goods consumed in the economy.
【单选题】有关计算机病毒的说法,其中( )不正确。
A.
计算机病毒有引导型病毒、文件型病毒、复合型病毒等。
【单选题】剖宫产术后,妇女再次妊娠的间隔时间最好是
【单选题】有关计算机病毒的说法,其中( )不正确。
【单选题】目前在我国淡水养殖业中的大型虾类品种是______。
【单选题】在评估一宗物业的客观合理价格或价值时,一般要求的估价方法种类要有( )。