Though not exclusively linked to aging, hardening of the _____ is more common in the elderly.
(A)allergies
(B)arteries
(C)corpses
(D)braids

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統計： A(64), B(168), C(48), D(41), E(0) #74810

姜叡璟

B1 · 2010/06/12

#42135

harden(v.)硬化

braid(n.)彩色穗帶 (v.)編成辮子」

Dex Shih

B2 · 2013/04/09

#589706

arteries 動脈

Shanna Lee

B3 · 2014/07/08

#886149

(A)allergies 過敏症
(B)arteries
(C)corpses 屍體
(D)braids髮辮，辮子