证明持有人有商品所有权或使用权凭证的证券被称为()。
A.商品证券
B.外汇证券
C.资本证券
D.货币证券
参考答案:A
逆浓度差进行的过程发生在()
A.氧进入细胞
B.钠离子进入细胞
C.钾离子漏出细胞
D.氯离子进入细胞
E.钠钾离子交换
Physical assessment findings in the eyes of elderly people may include
A.decreased lens thickness.
B.decreased visual acuity.
C.lightening of the skin around the orbits.
D.unequal pupillary light reflex.