【单选题】休克时脉搏和血压的变化特点是
A.
早期脉搏加快,血压下降,休克较严重时脉搏快而细弱,血压更下降
B.
早期脉搏加快,血压可正常,休克较严重时脉搏快而细弱,脉压变小,血压下降
C.
早期脉搏正常,血压下降,休克较严重时脉搏加快,血压明显下降
D.
早期脉搏正常,血压正常,休克较严重时脉搏快而细弱,血压下降
E.
早期脉搏加快,血压下降,休克较严重时脉搏细弱,血压下降显著
【单选题】沥青老化后,在物理力学性质方面,表现为______ 。
【简答题】沥青老化后,在物理力学性质方面,表现为针入度(),延度(),软化点增高。
【简答题】Electricity is such a part of our everyday lives and so much taken for granted nowadays 3 1 we rarely think twice when we switch on the light or turn on the TV set. At night, roads are brightly lit, e...
【简答题】给下列问句选择答语。 ( ) 1. The TV is too loud. ( ) 2. May I turn on the TV? ( ) 3. Do you like this one? ( ) 4. How often do you play s? ( ) 5. What are you doing? ( ) 6. Who plays ...
【单选题】人在寒冷环境中血压 ,高温环境下血压则略()
【简答题】bring across music go through channels 1.TV the world into our home in sight and in sound . 2. It tells us what is going on the country and all over the world . 3. Sitting at home, we can visit place...