年龄特征
参考答案：年龄特征：是儿童发展过程中呈现的一般的、典型的、本质的共同特征。
— I didn’t do well in the exam. What about you?
— I did _____ you. Maybe even worse.
A．not better than
B．not worse than
C．as well as
D．no better than
妊娠期急性胆囊炎和胆石病更常见于妊娠哪个期
A.晚期
B.中晚期
C.早中期
D.中期
E.早期
