一、单项选择题（本大题共30小题，每小题1分，共30分）

在每小题列出的四个备选项中只有一个是符合题目要求的，请将其代码填写在题后的括号内。错选、多选或未选均无分。

1．七岁的小儿身长是(      )

A.117cm                                                                              B.119cm

C.121cm                                                                              D.123cm

2．小儿各系统发育快慢不同，有先有后，发育最早的系统是(      )

A．生殖系统                                                                     B.消化系统   

C.神经系统                                                                        D.泌尿系统

3．恒牙一共(      )

A．28个                                                                             B.30个  

C.32个                                                                                D.34个

4．小儿听觉发展完善的时间是(      )

A．2岁                                                                               B.4岁    

C.6岁                                                                                   D.8岁

5．基础代谢所需的能量占总能量的(      )

A.30%～40%                                                                      B.40%～50%

C.50%～60%                                                                      D.60%～70%

6．母乳喂养每次喂养的时间约(      )

A．15～20分钟                                                               B.20～25分钟

C.25～30分钟                                                                  D.30～35分钟

7．胎粪排出的时间一般是在生后(      )

A．6～8小时                                                                    B.8～10小时

C.10～12小时                                                                  D.12～14小时

8．新生儿的脑相对较大，占体重的(      )

A.6%～8%                                                                           B.8%～10%   

C.10%～20%                                                                      D.20%～25%

9．早产儿出生后，应及时补充(      )

A．维生素A                                                                      B.维生素B    

C.维生素K                                                                         D.维生素D

10．小儿每次雾化时间不宜超过(      )

A．10分钟                                                                        B.15分钟       

C.20分钟                                                                            D.25分钟