通过1787年宪法，美国建立的是[ ]
A．联邦共和国
B．君主立宪制国家
C．封建君主制国家
D．开明君主制国家
答案：A
产后郁冒与产后血晕的鉴别要点为()
A．有无眩晕
B．有无呕吐
C．有无昏迷
D．有无汗出
E．有无心烦
根据汉语完成下面句子。
1. She's __________(穿) her shoes now.
2. Your mother is __________ (等) you.
3. Do you often __________ (参观长城)?
4. You should say __________ (晚安) to your parents when you go to bed.
5. Do you like any __________ (热狗)?
