第8题: [单项选择]Sulphur has {{U}}occasionally{{/U}} been found in the earth in an almost pure state. A. regularly B. accidentally C. sometimes D. successfully 参考答案:C 答案解析:occasionally与sometimes意思相近:有时;偶尔。I drink coffee only occasionally.我只是偶尔才喝咖啡。regularly:定期地,有规律地。The d
第17题: [单项选择]Ruth Simmons ______ the need-blind policy. A. reinstates B. disagrees to C. holds clear D. disregards 参考答案:C 答案解析:第三段最后一句提到了Ruth Simmons对“需盲”做法的认识:“道德上必须履行的责任”,由此可知,她是赞成“需盲”做法的。
第18题: [单项选择]小儿最常见的青紫型先天性心脏病是() A. 房间隔狭窄 B. 室间隔缺损 C. 法洛四联症 D. 动脉导管未闭 E. 肺动脉狭窄 参考答案:C 答案解析:法洛四联症、大动脉错位为右向左分流型,是临床常见的青紫型先天性心脏病。