【单选题】若存储周期 250ns ( 1s=109 ns ),每次读出 16 位,则该存储器的数据传送率为( )
【单选题】液压传动系统由( )执行装置、控制装置、辅助装置等组成。
【单选题】Assume a country that produces only cloth and paddy. Cloth production requires significant amounts of labor and capital, but relatively less land. Assume that paddy production requires relatively less...
A.
the production of both paddy and cloth will increase.
B.
the production of cloth will increase, but that of paddy will remain unchanged.
C.
the production of cloth will increase, but that of paddy will decline.
D.
the production of paddy will increase, but that of cloth will remain unchanged.
【单选题】属于3,5-吡唑烷酮类的非甾体抗炎药是( )。
【单选题】去神经的骨骼肌,下列哪种药物能使其兴奋收缩( )