神经瘤性角皮病的主要表现有()
A.假关节
B.骨发育异常
C.脊柱侧弯
D.听力障碍
E.运动障碍
参考答案:A, B, C
用所给词的适当形式填空。
1. My sister _____ (like) French fries.
2. Let's _____ (play) baseball.
3. Please _____ (call) me at 097 -0987.
4. Can you _____ (bring) some pears to me?
5. Her sister _____ (not have) eggs for breakfast.
平版胶印的三大原理是()、()、()。