6．可引起高滲性脫水的是（　　　）

A．消化液大量丟失                                        B．急性腎衰竭多尿期

C．腸梗阻                                                      D．大面積燒傷

E．運(yùn)動(dòng)后大量出汗

7．通氣血流比的正常值為（　　�。�

A．1.0                                                            B．0.8

C．0.6                                                            D．0.4

E．0.2

8．過(guò)敏性休克主要死因?yàn)椋ā　　。?/P>

A．蕁麻疹                                                      B．支氣管痙攣

C．喉頭水腫                                                  D．支氣管擴(kuò)張

E．低血壓

9．下列哪項(xiàng)不是休克的表現(xiàn)?（　　　）

A．外周靜脈塌陷                                           B．體位改變后收縮壓下降30mmHg

C．肢端濕冷                                                  D．神志淡漠

E．尿頻尿急

10．延髓對(duì)缺氧的耐受時(shí)間為（　　�。�

A．4～6min                                                    B．5～10min

C．10～15min                                                 D．15～20min

E．20～25min