形成阳偏衰的主要原因不包括A．先天禀赋不足B．后天饮食失养C．劳倦内伤D．金刃虫兽所

关于食管的说法以下正确的有（）。

A.由黏膜、黏膜下层、肌层和浆膜层构成

B.第一处狭窄位于起始部，相当于第7颈椎下缘平面

C.第三处狭窄位于膈肌食管裂口处，距门齿35～40cm

D.食管没有分泌和消化功能，它主要的功能是通过蠕动把食团输送到胃里

E.距贲门4～6cm的食管下段，其内压力高于胃内压力，起到“天然阀门”的作用

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) ."

水准点埋设深度至少要在冻土线以下（），以保证稳定性。

A、0.2m

B、0.3m

C、0.5m

D、0.6m

对客户资金筹措状况进行调查时，应注意（）。

A.将票据贴现

B.延期支付债务

C.开始躲债

D.为筹资而低价抛售

干咳少痰，痰黏难咯，痰中带血，口燥咽干，据其不兼有表证，从而排除燥邪犯肺证，此辨证思维方法属

A．预测法

B．归纳法

C．类比法

D．演绎法

E．反证法