下列治疗休克的措施中，最重要的是A．应用血管活性药B．补充血容量C．纠正酸碱平衡失调

某单位要制作一批宣传材料，甲公司提出：每份材料收费20元，另收3000元的设计费；乙公司提出：每份材料收费30元，不收设计费。请问该单位选择哪家公司制作这批宣传材料更合算？

缺词填空（共10空；每空1分，计10分）

The South China Sea Islands are made up of the East Sand Islands, West Sand Islands, Middle Sand Islands, South Sand Islands and Huangyan Island. A  小题1:   the islands of Nansha Islands, Huangyan Island is the only island above the China South Sea. It is r  小题2:   in all kinds of fishes. It is one of the most beautiful p  小题3:   of interest  in China. Many people there still make a living by f  小题4:   from the sea. However, on April 10, 2012, the Philippine soldiers broke into this island. They threatened (威胁) our six fishermen by guns to stand in the sun for two hours w  小题5:   any clothes. They even a  小题6:   our fishermen to sign a file to announce (宣告) that Huangyan Island b  小题7:   to Philippine, but was refused firmly.

“We will never give up! Huangyan Island has been part of China for c  小题8:  .” a Chinese government official said a  小题9:  .

With the help of the Chinese government, the six fishermen were s  小题10:   at last and they succeeded in leaving the island safely.

女，52岁，腹痛伴大便秘结和腹泻交替8个月，腹泻4～5次／日，稀烂，偶见鲜血便。查体：双肺未见异常，心率80次／分，无病理性杂音，左腹压痛，未及包块，肝脏未及，直肠指检阴性

该患者诊断应首先考虑为（）

A.功能性便秘

B.肠结核

C.左侧结肠癌

D.肠阿米巴痢疾

E.溃疡性结肠炎

换向阀的控制方式有：（）。

A、电磁铁控制

B、液压控制。

C、人力控制

D、机械控制

E、无线控制

采集的固体废物样品主要具有______。

A．追踪性
B．可比性
C．完整性
D．代表性