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举一反三
【单选题】Music to My Ears When other shad doubts, my father believed in me. As a boy growing up in Shenyang, China, I practiced the piano six hours a day. I loved the instrument. My mother, Xiulan Zhou, taught...
A.
The whole family moved to Beijing.
B.
He and his father went to Beijing to learn piano.
C.
His mother got iii.
D.
His family objected to his learning in Beijing.
【单选题】根据Fitzpatrick-Pathak日光反应性皮肤类型,有时发生日晒红斑,有时发生日晒黑化且程度为中度,未曝光区肤色为白色的皮肤光生物类型为( )。
A.
Ⅱ型
B.
Ⅲ型
C.
Ⅳ型
D.
Ⅴ型
E.
Ⅵ型
【单选题】当景物的亮度差与感光材料的宽容度相同时，曝光的宽容度（）。
A.
很大，可以增加一级或二级的曝光，或者减少一级或二级的曝光
B.
只有一个曝光量是合适的
C.
很小
D.
以上均对