小剂量多巴胺应用表现为（）
A.心率加快
B.血管扩张
C.血压明显升高
D.外周血管收缩
E.心肌收缩力增强
参考答案：B, E
单句改错（共10分）每题的A B C D 中有一处错误，请找出并更正。
小题1: There are two hundreds TVs in the shop.
A．
B．
C．
D．小题2: I used to is really quiet .
D．小题3:He should have his hair __cuts__.
D．小题4:What if I won’t know anyone ?
D．小题5:The T－shirt is too much small for me.
A. B. C. D.
出料加工货物自运出境之日起______内应当复运进境；经海关批准可以延期，延长的期限最长不得超过______。
A．3个月；3个月 B．6个月；3个月C．3个月；6个月 D．6个月；6个月
