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【单选题】
(1) W hy should you purchase (购买) something at our food sale? (2) F irst, we need money for our field trip to Washington, D. C. (3) Second, our food will be worth the money because it is all homemade. (4) F or example, Dominic Russo made some Italian tomato sauce (酱) with tomatoes, onions, mushrooms, and green peppers. (5) T hird, we will purchase something for the school if we have money left over from the trip. (6) L ast year, we used the extra money to buy a dozen books for our school library. (7) A s you can see, we have extremely (特别) good reasons for wanting you to purchase something at our sale. Which sentence is the topic sentence?A.
Sentence 1
B.
Sentence 7
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【简答题】下列预防溶血反应的措施中，不包括哪一项（ ）
【简答题】( )是把数据清单中的数据分门别类地进行统计处理。不需要用户自己建立公式, Excel 将会自动对各类别的数据进行求和、求平均等多种计算,并且把汇总的结果以“分类汇总”和“总计”显示出来 。
【单选题】预防溶血反应的措施是:
A.
严格执行无菌操作
B.
输血前肌内注射碳酸氢钠
C.
认真做好血型鉴定和交叉配血试验
D.
输血前静脉注射10℅葡萄糖酸钙
E.
输血前静脉注射地塞米松