哪一种病不出现眼球钙化()
A.视 * * 玻璃样小体
B.脉络膜骨瘤
C.视网膜母细胞瘤
D.甲状腺性突眼
E.海绵状血管瘤
参考答案:D
Cucumber contains a high content of vitamin C which is five times higher than _____of watermelon.
A. ones
B.it
C. that
D.those
绘图题:看图E-22说明杆型。