基底膜由底部到顶部()
A.逐渐变窄
B.逐渐变宽
C.逐渐变薄
D.逐渐变厚
E.宽度不变
参考答案:B
因动脉粥样硬化或心肌梗死致脑栓塞多见于()
A.老年人
B.青、中年男性
C.青、中年女性
D.儿童
E.婴儿
They had been for many years.
A.lost touch with
B.out of touch
C.lost touch
D.out of touch with