第6题: [单项选择]How much does one shirt cost A. $6. B. $12. C. $6.5. 参考答案:C 答案解析:[听力原文] F: They are very nice shirts. How much are they M: 6. 50 dollars for each. But 12 doll
第28题: [单项选择]如果孕妇在孕期暴露于某因素与婴儿畸形的相对危险度是5,意味着()。 A. 暴露组孕妇生畸形儿的危险是非暴露组孕妇的4倍 B. 暴露组孕妇生畸形儿的危险是非暴露组的5倍 C. 暴露组孕妇生畸形儿的危险比非暴露组大6倍 D. 暴露组孕妇生畸形儿的危险是非暴露组的6倍 E. 暴露组孕妇生畸形儿的危险比非暴露组孕妇大5倍 参考答案:B