第21题: [单项选择]
干呕呃逆,胃脘嘈杂,口干咽燥,舌红少苔。其证候是 A. 食滞胃脘 B. 胃阴虚 C. 肝脾不调 D. 肝胃不和 E. 胃阳虚 参考答案:B 答案解析:胃阴不足,则胃阳偏亢,虚热内生,热郁胃中,胃气不和,致脘部隐痛,饥不欲食。胃阴亏虚,上不能滋润咽喉,则口燥咽干;下不能濡润大肠,故大便干结。胃失阴液滋润,胃气不和,可见脘痞不舒,阴虚热扰,胃气上逆,可
第22题: [单项选择]Passage Three Questions 33 to 35 are based on the passage you have just heard. A. A wide selection of investments. B. A limited range of stocks. C. A group of low risk bonds and cash. D. A variety of funds. 参考答案:A 答案解析:[听力原文] What is a "diversified portfolio" of investments
第24题: [单项选择]下列有关微孔滤膜的介绍哪一条是错误的 A. 微孔总面积占薄膜总面积的800%,孔径大小均匀 B. 无菌过滤应采用0.3μm或0.22μm的滤膜 C. 不影响药液的pH值 D. 在滤过面积、截留粒子大小相同的情况下,膜滤器的流速要比其他滤器快40倍 E. 滤膜安放前应在70℃注射用水中浸渍12小时以上,安放时正面朝向药液入口以防膜的堵塞 参考答案:E
第27题: [单项选择]常用地址符H、D的功能是()。 A. 刀具功能 B. 偏置号 C. 进给速度 D. 主轴转速 参考答案:B
第28题: [单项选择]A The advantages of an economy based on farming
B Reasons farmers continued using river transportation
C The role of cotton in the United States economy
D Improved methods of transporting farm crops 参考答案:B 答案解析:[听力原文]48-50
About 200 years ago, the United States economy was growing quickly, mainly because a bo