题目:
. Many experts agree that once these treasures are _______ to the air, great harm will be done to them. So they think it better not to unearth the treasures.
A.exposed
B.threatened
C.constructed
D.conserved
答案:
答案:A
. Many experts agree that once these treasures are _______ to the air, great harm will be done to them. So they think it better not to unearth the treasures.
A.exposed
B.threatened
C.constructed
D.conserved
答案:A