题目

若所要观察的物像位于显微镜视野的右下方,要把物像移到视野中央,应往哪个方向移动玻片标本  (       ) A.左上方     B. 左下方      C.右上方      D.右下方 答案:D The middle and lower classes in the Middle East are hoping for __________ peace whoever takes the power of the government. [  ] A. firmly B. forever C. permanent D. middle
生物 试题推荐