单项选择题
A.50% B.90% C.70% D.60% E.80%
A.50% B.10% C.40% D.30% E.20%
A.21% B.32% C.43% D.62% E.55%
A.组织学检查 B.眼部体征 C.眼部症状 D.唾液腺受损 E.口腔症状
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