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【单选题】
当眼视近物时，使光线聚焦在视网膜上，主要是通过调节A.
晶状体曲率半径
B.
房水折光率
C.
眼球前后径
D.
玻璃体折光率
E.
角膜曲率半径
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【简答题】Spare the rod and spoil the child.
【简答题】Spare the rod and spoil the child.
【简答题】顶层边节点纵向钢筋弯折,当钢筋直径d不大于()mm时,弯折半径r=( )d;当钢筋直径d大于()mm时,弯折半径r=( )d(答案在课本88页)
【单选题】Corrective taxes that are imposed upon the producer of anasty smell can be successful in reducing that smell because the tax makes theproducer
A.
externalize the positive externality.
B.
externalize the negative externality.
C.
internalize the positive externality.
D.
internalize the negative externality.
【简答题】There is an old Chinese saying 'Spare the rod, spoil the child. '(孩子不打不成气) Write an article responding to the points raised and expressing your own views. You should write at least 150 words.