加氢精制装置停动力蒸汽后，下列设备不需要停运的是（）A、新氢机 B、反应进料泵 C、反应

内部网络中某主机的IP地址为192.168.28.10，子网屏蔽码是255.255.255.0。当网络电缆被拔出，仍能ping通的IP地址是( )。

A．ping192.168.28.10

B．pingl92.168.28.0

C．ping127.0.0.0

D．ping255.255.255.0

---More than 1,000 American soldiers died in Iraq since the war broke out.  ---____.

A．It could have made lots of Americans sad

B．It should have made lots of Americans sad.

C．If Bush hadn't sent soldiers to Iraq, a lot of lives would have been saved

D．If the momey spent on the war had been spent helping poor countries, the living standard of poor countries will be much better.

按照什么原则来全面推进社区青年志愿者工作？

激素治疗肾病综合征的疗效主要表现为（）

A.消肿

B.清除蛋白尿

C.增加血浆蛋白

D.减少尿中FDP

E.利尿

群体对个体施加的压力使其遵从主要有（）压力和（）压力。