问题
单项选择题
低流量麻醉的优点不包括()
A.减少麻醉药用量
B.减少手术室污染
C.保持环路内湿度
D.保持环路内温度
E.初学者容易掌握
答案
参考答案:E
低流量麻醉的优点不包括()
A.减少麻醉药用量
B.减少手术室污染
C.保持环路内湿度
D.保持环路内温度
E.初学者容易掌握
参考答案:E
阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。 I was in the fifth grade in a small town in Utah. At the start of the school year, my friends and I saw a(n) face. It was clear from the start that the newcomer, Ruth, would not be _____ in our social circle. Her father lived in a neighborhood that was far from fashionable. Every day, she wore the _____ dress and too-big blue sneakers. There were lots of ____ in our school on Christmas Eve every year. Most people in town ____ the school’s Christmas programmes. While other classes sang songs and performed skits, the ____ was reserved for fifth--graders. The starring roles were Mary and Joseph. One day before Christmas, my friends and I listened ____ as our teacher, Mr. Russon, read from his list. Finally, he said, “Joseph will be ____ by Timothy.” I was ____ ,but at once tense again. Which of the popular girls would perform with me? “And the ____ of Mary goes to …Ruth.” Ruth? As far as we knew, she hadn’t ____ tried out. If Ruth was going to be Mary, we decided, we’d make this the ____ Christmas play ever. _____, Ruth had always practiced her song while the rest of us were doing ____ . Her voice cracked as she tried to get a(n) ___ . We laughed harder than ever. Our music teacher the pianist. We were the worst group of fifth-graders ever, the teacher told us. This year there would be play! Christmas Eve arrived. Students and people crowded the hall. Finally the time ____ for the fifth-grade performance. To our ____ , Mr. Russon said, “One of the fifth-graders will sing a solo.” The curtain opened, and there stood Ruth. She wore a white dress. Her face ___ as she began to sing. A beautiful voice rang through the hall.
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