【多选题】马卡连柯认为,教育目的的制定应以下述两个方面为依据()。
【简答题】对于理想体系,汽液平衡常数Ki(=yi/xi),只与 和 有关,而与组成无关。(用一个空格间隔)
【判断题】与异步电机相比,永磁同步电机成本较高,可靠性和使用寿命较差。
【单选题】Most of what I know about carpentry, which is almost nothing, I learned in Shop.You should know that I took Shop during the Eisenhower administration, when boys took Shop and girls took Home Economics...
A.
inform readers about the nature of shop classes.
B.
argue that shop classes should be eliminated from public schools.
C.
amuse readers with humorous details about shop classes.
【单选题】灯谜“雄信吃饭无人陪(猜防疫名词)单独用餐”中“单”字的扣合方法是 ()
【单选题】硫酸铜的氨水溶液中,已知有一半的铜离子形成了 [Cu ( NH 3 ) 4 ] 2+ ,且自由氨浓度为 5.0 × 10 -4 mol·L - 1 ,则 [Cu ( NH 3 ) 4 ] 2+ 的 K s 等于( )
【简答题】已知向量 m =(2sinx,2cosx), n =( 3 cosx,cosx),f(x)= m ? n -1. (1)求函数f(x)的最小正周期和单调递增区间; (2)将函数y=f(x)的图象上各点的纵坐标保持不变,横坐标先缩短到原来的 1 2 ,把所得到的图象再向左平移 π 6 单位,得到函数y=g(x)的图象,求函数y=g(x)在区间[0, π 8 ]上的最小值.
【简答题】A.The following expressions are commonly used in English when you accept or decline an invitation. Put them into Chinese. Mr. and Mrs. Zhang accept with pleasure Mr. and Mrs. Adams’ invitation to dinn...
【简答题】阅读理解。 People who travel long distances will have to decide whether they would prefer to go by land, sea or air.Maybe nobody would say they enjoy sitting in a train for more than a few hours. The train...