女，28岁，产后突发剧烈头疼，视物模糊，一侧肢体轻偏瘫。CT平扫示双侧脑白质大片低密

小肠特有的节律性运动形式是（）

A.紧张性收缩

B.蠕动

C.蠕动波

D.容受性舒张

E.分节运动

论东坡词的风格。

依据华电集团《电力生产安全监督规定（A版）》，各单位在承、发包工作中签订的安全生产管理协议需要明确什么内容？

Which of the following statements about debt securities is least accurate（）

A. Commercial paper is a short-term (less than nine months) vehicle for corporate borrowing.

B. A MTN is a shelf-registered debt instrument that is continually offered to investors by an agent of the issuer and varies in maturity from nine months to over 30 years.

C. A medium-term note (MTN) differs from a corporate bond in that a MTN is sold to investors on a "firm commitment" basis wherein the investment banker guarantees a price to the issuer.

标准成本制度不仅可以用于制造类企业，也可以用于服务类企业。( )