眼球壁由______，______和______组成。
参考答案：外层一角膜、巩膜 中层一虹膜、睫状体、脉络膜 内层一视网膜
-- Don’t worry, Mrs Black, your son get slightly injured.
--_____! I will call my husband and tell him there is nothing serious.
A．What a relief!
B．Well done!
C．Good luck!
D．What a shame!
