晶状体凸度增大时（）。
A.睫状突后移
B.睫状肌舒张
C.睫状肌收缩
D.瞳孔开大肌收缩
E.瞳孔括约肌收缩
参考答案：C
瑜伽是将（）融为一体的修炼方法。（）
A.冥想
B.呼吸
C.体位法
D.作息
— ______ his bike is lost?
— He has to go to school on foot.
A．How about
B．What if
C．Can you tell me
D．I don’t know
