搜题请搜索小程序“爱下问搜题”
问题 多项选择题

消化道出血患者，只有黑粪而无呕血说明（）。

A.出血量小

B.出血速度慢

C.出血部位在幽门以下

D.可以确诊为下消化道出血

E.可以排除上消化道出血

答案

参考答案：A, B

补全对话，情景问答

从方框内选择恰当的语句补全对话,有两项多余。

  Jim: What's wrong, Li Peng? You are not looking happy.

  Li Peng: l'm not, l feel a little worried about my English.

  Jim:    l    

  Li Peng: l'm not getting along well with it.

  Jim: Why not?

  Li Peng: Well,l hardly have chances to meet English people.

  Jim:      2      

  Li peng: Where should I go?

  Jim:       3    

  Li Peng: But…it seems English people never speak to me.

  Jim:Ah !    4

  Li Peng:      5      

  Jim: The weather! English people are always interested in the weather.

1.__________ 2.___________ 3．__________

4.__________ 5．__________
查看答案
单项选择题

随温度升高，压力容器的材质强度（）十分明显。

A.升高

B.降低

C.变硬

D.融化
查看答案