实践之所以是检验真理的唯一标准，就实践自身的特点而言是因为（）。 A.它是对人类有用

2008年1月15日，北京市发布包括话梅、鱿鱼丝、酱油、金针菇、蜂蜜等品种在内的15种不合格食品，并责令在全市停售。这些问题食品之所以能够堂而皇之地上市，都离不开那只操纵在背后的利益黑手。这说明

A．单纯的市场调节具有盲目性

B．价值规律的作用是有条件的

C．市场经济的正常发展需要发挥国家的宏观调控

D．商品生产者应当把维护消费者利益周围活动的根本出发点

男性患者，一个月前因外伤手术输血800ml，近一周出现乏力，食欲不振，尿色加深，化验肝功ALT 500U/L，抗HCV(+)，HCVPCR(+)，抗HBc(+)，诊断应考虑

A．急性丙型肝炎，既往有乙肝病毒感染史

B．慢性丙型肝炎

C．乙、丙型肝炎病毒合并感染

D．急性乙、丙型肝炎

E．急性乙型肝炎

法定检验检疫的入境货物到货后，收货人应向卸货口岸或到达站的检验检疫机构办理报检。未报经检验检疫的( )

A．不准销售

B．不准使用

C．可以使用，但不准销售

D．既可使用，也可销售

China is to send its top negotiator on North Korea’s nuclear program to Pyongyang (36) amid international concern over the launch of (37) .
While the (38) and its ally Japan push for (39) against North Korea, China is (40) , not sanctions.
Also, the (41) to Japan says sanctions on North Korea will (42) efforts to bring the secluded state back to (43) on its nuclear program.
North Korea (44) the six-party talks in (45) after Washington imposed financial sanctions for alleged counterfeiting and (46) activities.
A broadcast on North Korean State Television (47) the missile tests, in what it called a "successful (48) ".
It said North Korea will take action against anyone who (49) them.
The Minister is reported to have told a (50) that the missile launches were (51) because of America’s sanctions against Pyongyang.
North Korea remains (52) in the face of international condemnation and has warned (53) could be carried out.
UN Security Council members will (54) discussions tonight on whether a (55) condemning the missile launches should call for sanctions.