原发性高血压最常累及的血管是（）
A.全身中小静脉
B.大动脉
C.全身小静脉
D.全身细小动脉
E.弹力和肌型动脉
参考答案：D
Which do you feel like ________ the time on the train, chatting with friends or just reading something?
A．killing
B．to share
C．to kill
D．sharing
晚上用台灯时，人与灯的距离不宜过近。
