关于热证模型动物表现的叙述，错误的是（）
A.NA含量增高
B.DA合成增多
C.5-HT含量增加
D.痛阈值降低
E.惊厥阈值降低
参考答案：C
不需局内投交的邮件是（）
A、保价信函
B、投交邮政专用信箱的邮件
C、平常信函
D、存局候领邮件
Of the first Spanish _______ to California, ______ were religious men, whose ministry was to teach the Catholic religion to the natives.
A．went; the most
B．went ; most
C．to go; the most
D．to go; most
