【简答题】Historically speaking, what do monetary authorities do to reduce unemployment?
【单选题】通常所说的交流220V或380V是指它的()
【单选题】通常所说的交流 220V 或 380V 电压是指它的 ( )。
【单选题】Historically the Ukrainians are an ancient ______ which has persisted and survived through terrible calamity.
【单选题】在HTML中有一个标签,该标签的作用是?
【单选题】通常所说的交流电压220V或380V指的是交流电的( )
【单选题】通常所说交流220V或380V电压,是指它的()。
【单选题】Friedrich Engels declared that the potato was the equal of iron for its ' historically revolutionary role', then according to the text, what does this 'historically revolutionary role' refer to?
A.
Its high volume of production, and consequently lower price, greatly supported the workers in the factories then.
B.
It liberated workers from the land, thus providing labour force for the industry.
C.
It changed the agriculture structure of England, which ultimately resulted in a shift from an agricultural country to an industrial one.
D.
It can provide more calories, thus saving land for cotton growing, and consequently boosting the textile industry.
【单选题】古人创作讲究精益求精,唐代诗人贾岛就曾有过辛苦的创作经历,他“二句三年得,一吟双泪流”的两句诗是: ( )
【单选题】通常所说交流220V或380V电压,指的是( )