问题
选择题
用显微镜观察叶下表皮临时装片时，发现一气孔位于视野的右下方。要想使该气孔移至视野中央，装片应移向
A．左上方
B．左下方
C．右上方
D．右下方
答案
答案：D
本题考查的是显微镜的使用。在显微镜下观察到的是倒像，即上下颠倒，左右也颠倒。所以物象位于视野的右下方，实际是在左上方，应向右下方移动装片才能使要观察的物象移至视野的正中央。
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用显微镜观察叶下表皮临时装片时，发现一气孔位于视野的右下方。要想使该气孔移至视野中央，装片应移向
A．左上方
B．左下方
C．右上方
D．右下方
答案：D
本题考查的是显微镜的使用。在显微镜下观察到的是倒像，即上下颠倒，左右也颠倒。所以物象位于视野的右下方，实际是在左上方，应向右下方移动装片才能使要观察的物象移至视野的正中央。
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