[单项选择]Some educators try to put students of similar abilities into the same class because they believe this kind of ______ grouping is advisable. A. homogeneous B. instantaneous C. spontaneous D. anonymous
第18题: [单项选择]蛛网膜下腔和硬膜外腔阻滞后() A. 术后即可进食 B. 术后3~6小时可进食 C. 术后2~3天可进食 D. 肠道蠕动功能恢复后 E. 呕吐反应消失后进食 参考答案:B 答案解析:非腹部手术后饮食视手术大小、麻醉方法和病人反应而定。如无其他不适,局部麻醉后即可进食;蛛网膜下腔和硬脊膜外腔阻滞者,术后3~6小时可进食;全麻病人应在呕吐反应消失后进食;全身反应明显者术后2~3天进食
第32题:[单选题]7. Which is not a reason for private foreign direct investment? A.A.horizontal and vertical integration B.B.to maximize profits and diversify risks C.C.to stimulate development D.D.to avoid tariffs 参考答案:C