填空题

How long should one rub the lenses once

【参考答案】

10 seconds
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填空题
How much Comfortact should be used before putting lenses into the eye
单项选择题
A．Yes, I like them.B．You can borrow them, if you like.C．No, I don’t like them.D．Cotton.
A．Yes, I like them.
B．You can borrow them, if you like.
C．No, I don’t like them.
D．Cotton.
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