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【单选题】
从听觉障碍的分类来看，极难感觉声音的存在，需要借助助听器的辅助才能感受声音的震动力，这属于()
A.
二级重听
B.
一级重听
C.
二级聋患者
D.
一级聋患者
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【多选题】助听器耳膜的保养，以下说法正确的是
A.
每天晚上将耳模声孔内的水汽、水珠甩掉，最好存放大有干燥剂的密封小盒内
B.
每天用干燥、柔软的布料把耳模擦净，并除去声孔内的污手
C.
每周用肥皂水洗涤一次，去掉油垢
D.
定期用酒精擦洗，保持耳膜的清洁卫生
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s surface, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s surface
D.
it has caused many visitors to injure themselves