光敏电阻的亮电流是（）和（）之和。

________ in a white uniform, he looks more like a cook than a doctor.[ ]

A. Dressed      

B. To dress      

C. Dressing  

D. Having dressed

腹中冷痛，手足逆冷，身体疼痛，方宜

A．枳实导滞丸
B．乌头桂枝汤
C．少腹逐府汤
D．暖肝煎
E．神术散

An internet is a combination of networks connected by (26) ．When a datagram goes from a source to a (27) ，it will probably pass many (28) until it reaches the router attached to the destination network．A router receives a (29) from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet The decision is based on optimization：Which of the available (30) is the optimum pathway

A．destinations

B．routers

C．packets

D．computers

下列税费中，可以在计算企业所得税时一次性扣除的是（）。

A.增值税

B.车辆购置税

C.契税

D.车船税

属于大量咯血的每天咯血量为

A．＞100ml
B．＞200ml
C．＞500ml
D．500～1000ml
E．＞1000ml