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举一反三
【单选题】女性，3个月。右面部有一约2cm×2cm的鲜红色斑块，高出皮肤表面，界限清楚，压之褪色。诊断首先考虑为（）。
A.
草莓状血管瘤
B.
海绵状血管瘤
C.
蔓状血管瘤
D.
葡萄酒色斑
E.
脂肪瘤
【单选题】Alzheimer’s disease has no cure. There are, however, five drugs—known and approved—that can slow down the development of its symptoms. The earlier such drugs are administered, the better. Unfortunatel...
A.
It never increases before the symptoms of Alzheimer’s appear.
B.
In men, levels of it remain stable for their lifetime.
C.
Women developing Alzheimer’s usually have lower levels of it.
D.
The brain plaques connected with Alzheimer’s produce it.