急性胰腺炎出现黄疸的原因，可能性很小的是（） A.胰头附近淋巴结压迫胆道 B.肿大胰

男性，15岁，突发全身浮肿半个月。查体：BP120/70mmHg，眼睑和双下肢凹陷性水肿，尿蛋白（+++），BLD（-），24小时尿蛋白定量6.8g，血清白蛋白20g/L，BUN10.7mmol/L，Cr125μmol/L，首选的治疗方法是（）。

A.强的松40～60mg/d，8～12周后逐渐减量

B.强的松40～60mg/d，4周后无效加用免疫抑制剂

C.甲基强的松龙500mg/d，冲击3天

D.ACEI+ARB

E.CTX0.2g，qod，iv

下列各项中，可作为支付结算和资金清算的主体是()。

A．个人

B．农村信用合作社

C．银行

D．个体工商户

Beijing: The United States and North Korea had their first (1) in four months here this afternoon as part of the (2) negotiations on how to end North Korea’s nuclear program, but diplomats played clown prospects for (3) . The talks are at the Diaoyutai (4) , a sprawling, garden-filled (5) in western Beijing, with negotiators gathering around a giant hexagonal table built to (6) the six delegations. The Chinese placed the Americans and the North Koreans in (7) , which may have facilitated the (8) between Mr. Kelly and Mr. Kim, which took place (9) in the afternoon session. The two spoke for 30 minutes, two Asian diplomats (10) . The early indications of how the talks are going (11) . A South Korean who took part in the meetings described North Korea as "willing to (12) through dialogue." Chinese officials also put a (13) on the talks. "I heard talks this morning and this afternoon were very successful," the Foreign Minister, Li Zhaoxing, told delegates (14) . But Japanese and Russian participants were (15) . The Russian (16) , Aleksandr Losyukov, described the negotiations as (17) . "So far, the countries have put forward a number of (18) , which are (19) the development of these talks," he told Russian reporters in Beijing. "I would not say that I am feeling (20) ."

______决定了明文到密文的映射。

宋代民间的“说话四家”即（）、说铁骑儿、说经、讲史书。现在我们见到的宋元话本主要是“小说”和“讲史”两家。