脉博是沿着_____壁传播的。 [ ]
A．静脉
B．动脉和静脉
C．全身血管
D．动脉
D
下列不属病理产物的是
A．痰饮B．瘀血C．脓液D．气滞E．湿浊
Most of us think of sharks as dangerous, owing to lack of information rather than fear.
A．due to
B．because
C．as
D．for
