"对，您做的很好！"这是对病人作出的什么反馈（）
A.积极性
B.消极性
C.模糊性
D.情感性
E.安慰性
参考答案：A
Parents, of course, will do everything they could to ________ their children from harm.[ ]
A. defend
B. convince
C. overcome
D. reduce
汉译英：“保函；信用证；许可证”，正确的翻译为（）
A．letter of credit; letter of guarantee; license
B．letter of guarantee; letter of credit; license
C．letter of guarantee; license; letter of credit
D．license; letter of credit; letter of guarantee
