单项选择题“We'd like to try this on,” she'd say carefully, uttering her words and properly.
单项选择题直接检眼镜检查眼底时,正确的是 A. 需正视前方 B. 需注视光源 C. 检查黄斑中心凹光反射时需注视光源 D. 可看向检查者耳朵