我国把私人资本主义企业改造成为社会主义性质企业采取的形式是( ) A．国营经济

男，27岁，入院前1天突然出现全身抽搐1次，时间约2分钟，继之患者出现昏迷，血压180／108mmHg，心率62次／分，心前区可闻及心包摩擦音，Babinski征阴性，血红蛋白52g／L，血小板60×10⁹／L，白细胞3.2×10⁹／L，尿蛋白＋＋，血钾6.5mmol／L，血钠132mmol／L，血钙1.3mmol／L，血磷3.4mmol／L，二氧化碳结合力9mmol／L，ECG：二度Ⅰ型房室传导阻滞。

当患者再次出现抽搐时，应立即采取的治疗措施（）。

A.静脉滴注硝普钠

B.静脉推注5％葡萄糖酸钙

C.静脉推注25％甘露醇

D.静脉推注安定

E.静脉推注肾上腺素

男性患者，68岁，以"头痛、呕吐、左侧肢体无力6小时，昏迷5小时"为主诉入院。查体：血压180/120mmHg，浅昏迷，左鼻唇沟浅。左侧上、下肢不能活动，左侧Babinski征阳性。辅助检查：头颅CT示右基底核区有一类圆形高密度影。

此时最重要的治疗是（）

A.止血药

B.脱水剂

C.血管扩张药

D.抗生素

E.降血压药

下列有关功能高分子材料的用途的叙述中，不正确的是 [ ]

A．高吸水性树脂主要用于干旱地区抗旱保水、改造土壤、改造沙漠

B．离子交换树脂主要用于分离和提纯物质

C．医用高分子可用于制造医用器械和人造器官

D．聚乙炔膜可用于分离工业废水和海水的淡化

"Culture shock" occurs as a result of total immersion in new culture. It (51) to "people who have been suddenly transplanted abroad. " Newcomers may be anxious (52) they do not speak the language, know the (53) , or understand people’s behavior in daily life. The visitor finds that "yes" may not always mean "yes", that friendliness does not (54) mean friendship or that statements that appear to be serious are really intended (55) jokes. The foreigner may be unsure as to when to shake hands or embrace, when to (56) conversations, or how to approach a stranger. The (57) . of "culture shock" helps explain feelings of bewilderment and disorientation. Language problems do not account for all the frustrations that people feel. When one is (58) of everything that was once familiar, such as understanding a transportation system, knowing how to register for university classes, (59) knowing how to make friends, difficulties in coping with the new society may (60) .

59（）。

A. but

B. nor

C. or

D. and