下列关于生长激素的作用的叙述正确的是 [ ]
A．使人体心跳加速
B．促进细胞吸收和利用血糖
C．促进人体的生长
D．与人体第二性征的出现有关
C
男，25岁，近8年反复咯血多次，小至中量，无咳嗽、咳痰，肺部体征阴性。
如X线、痰液检查未能明确诊断，进一步应作哪项检查（）。
A.选择性支气管造影
B.肺功能
C.胸部CT
D.胸部MRI
E.肺血管造影
单句改错。
1.This question is very easier than that one.
A B C D
2. Jimmy is a little funny than me.
3.I need your help tomorrow. Can you come a little early?
4. Shanghai is larger than any other cities in China.
5. My parents are all teachers in a middle school.
