学前儿童言语发生发展的趋势：语音知觉发展在先，正确语音发展在后；理解语言发生发展在先，语言表达（）。
参考答案：发生发展在后
关于痢疾，下面叙述正确的是（）
A.仅发生于夏秋季节
B.可急骤发病，出现发热惊厥，厥脱昏迷
C.主症为大便次数增多
D.病位在肠
E.具有传染性和流行性
Had I known her name，___________ .
A．or does she know mine
B．and where does she live
C．she would come here
D．I would have invited her
