成人最常见的眶内恶性肿瘤为()
A.眶内炎性假瘤
B.视网膜母细胞瘤
C.眼型Grave病
D.黑色素瘤
E.视神经胶质瘤
参考答案:D
We are tired of doing ________ homework every day; most of _______ is of no use but of
mechanical drill.
A.a lot of; it
B.the number of; which
C.a number of; it
D.a great deal of; which
婚前医学检查是通过医学检查手段发现()疾病,给予及时治疗。
A.有影响结婚
B.影响生育
C.先天遗传型
D.家族性