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【单选题】
下面有关原子吸收分光光度计的使用方法中叙述错误的是( )A.
单缝和三缝燃烧器的喷火口应定期清理积碳
B.
空心阴极灯长期不用,应定期点燃
C.
对不锈钢雾化室,在喷过样品后,应立即用酸吸喷 5-10 分钟进行清洗。
D.
对不锈钢雾化室,在喷过样品后,应立即用去离子水吸喷 5-10 分钟进行清洗。
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【判断题】The dairy industry loves to sell low-fat milk and skim milk because they could then make a lot more money from butterfat which consumers buy as ice-cream. Question:The dairy industry loves to sell low...
A.
正确
B.
错误
【单选题】The dairy industry has taken great pains to increase the number of products from which the butterfat has been ______.
A.
revived
B.
removed
C.
excluded
D.
isolated
【简答题】()As for as l'm _________,the E-business industry will tremendously change people's lifestyle. in the future. A. known B .considered C. concerned D. asked
【判断题】The dairy industry loves to sell low-fat milk and skim milk because they could then make a lot more money from butterfat which consumers buy as ice-cream. Question:The dairy industry loves to sell low...
A.
正确
B.
错误
【单选题】The reasons why the immigrants cannot work in industry are the following, except______.
A.
low educational standards
B.
lack of training
C.
capital intensive modem industry
D.
labor intensive modem industry
【单选题】小儿男,5个月到婴儿保健室体检,小儿发育正常家长作文小儿需水量,护士的正确回答是
A.
800ml
B.
850ml
C.
900ml
D.
950ml
E.
975ml
【简答题】This area has great potential for developing dairy industry, as there is plenty of grass here even in winter for the cattle to __________ . (feed)
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