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患者男性，55岁，双眼视力逐渐下降8年，右眼加重2。自诉8年前无明显诱因自觉双眼视力缓慢下降，在当地医院就诊，诊断为"双眼糖尿病性视网膜病变（DR）"、"双眼玻璃体积血"，以活血化瘀等中药治疗，视力一直较为稳定，2前自觉右眼视力突然明显下降，来我院就诊。眼部检查：Vod0．02，Vos0．6，矫正视力无提高。双眼眼压正常，双眼前节无特殊。散瞳查眼底：右眼眼底窥不清；左眼见玻璃体混浊（++～+++），下方混浊为主，不完全后脱离，直接检眼镜下左眼眼底较模糊，视盘颜色正常，边界清，C／D=0．3，血管走行较为迂曲，A／V=2／3，黄斑区色素稍紊乱，后极部视网膜平伏，表面可见增殖膜，散布出血点及棉绒斑，左眼FFA示视网膜中部大量微血管瘤、较多无灌注区及少量新生血管形成，黄斑区弥漫性水肿。左眼需做下列何种治疗（）A.
全视网膜光凝
B.
针对新生血管的局部视网膜光凝
C.
针对无灌注区的局部视网膜光凝
D.
黄斑区格栅样视网膜光凝
E.
预防性玻璃体切割术
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举一反三
【单选题】The VIP customer can take advantage of discounted room rates on a "first-come, first-served" basis.
A.
贵宾可以根据"先来先得"的原则，享受折扣房价的优惠.
B.
本酒店按照"先来后到"的顺序安排贵宾入住并确定房价.
C.
根据"先来后到"的原则，先来的客人可选择房价折扣率.
【单选题】The expression "take advantage of "(Para.5 )may most probably mean____
A.
benefit from
B.
know about
C.
find out
D.
make full use of
【单选题】They decided to register their marriage as soon as possible to take advantage of the existing policy. In the sentence, "take advantage of " means_______
A.
抓住
B.
利用
C.
取走
D.
占有
【单选题】What does "virtue" mean in the title of the text — "The Virtues of Growing Older"?
A.
a good moral quality in a person
B.
an advantage or good thing
【简答题】创建一个“tushu”空数据库。
【单选题】_____ is the use of a mobile device and its location to check into locations such as businesses and entertainment venues, find friends and their locations, and receive rewards and take advantage of "s...
A.
MMORPG
B.
Social locationing
C.
Mobile locationing
D.
Social gaming
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