下列哪项不属于周围血管征()
A.颈动脉搏动明显
B.水冲脉
C.颈静脉怒张
D.杜氏双重杂音
E.节律性点头运动
参考答案:C
They feared that he would _____ if he continued to work on the project day and night. [ ]
A. burn himself down
B. burn himself out
C. burn himself up
D. burn himself off
电磁阀一般安装在()和()之间。