新疆某外贸公司从韩国进口一批聚乙烯，拟从青岛口岸入境后转关至北京，最终运至陕西使用。

患者男，39岁。2年前无明显原因出现睡眠不好，开始表现为入睡很困难，每晚仅仅能够睡着3小时左右，白天感到疲乏、无力。曾自服中药治疗，效果不佳。近3个月几乎整夜无法睡着，白天严重影响工作，患者自己未述其他不适。

对该患者诊断最有帮助的检查是（）

A.头部CT

B.睡眠脑电波检查

C.B超

D.普通脑电图

E.地塞米松抑制试验

慢性浅表性胃炎与萎缩性胃炎的镜下观察主要区别是（）

A.病变范围

B.可否看见黏膜下血管

C.黏液分泌多少

D.黏膜色泽

E.有无充血

患者女性，58岁，发现 * * 外上部肿块3个月，无痛。超声检查显示肿块边界不规则形，呈蟹足状生长，后方回声衰减。

该疾病可能诊断为（）。

A.乳腺囊性增生症

B.乳腺纤维腺瘤

C.乳腺炎

D.乳腺囊肿

E.乳腺癌

煎膏剂的工艺过程有一个很重要的步骤即收膏，此时加入糖或蜜，其量应为（）

A.是清膏量的1倍以下

B.是清膏量的2倍以下

C.是清膏量的3倍以下

D.是清膏量的4倍以下

Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up. (6) at the customer premise over slow (7) ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet (8) technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the (9) or cable "modem" over a much faster medium such as Ethernet. It also means that multiple (10) can connect to the Internet through the same connection.

（10）是（）

A.cables

B.hosts

C.servers

D.modems