在临床医学研究前，对无行为能力的病人要获得他家属的同意，这属于（）
A.代理同意
B.知情同意
C.不同意
D.诱导同意
E.有效同意
参考答案：A
根据句意完成已给出首字母或汉语提示的单词，使补全后的句子意思通顺、语法正确。
1. Tom and Sam are twins, but there are some d_____ between them．
2. Hawaii is f_____ for its beautiful beaches．
3. Our math teacher is a s_____ man．It seems that he never laughs．
4. Chinese medicine is now popular in many w_____ countries．
5. You can call Miss Zhang for more _____(信息)．
6. Your vacation _____ (计划) sounds wonderful．
7. My eating _____ (习惯) is pretty good．
8. Lots of _____ (游客) come to Qingdao every day．
柴油机输油泵起什么作用？
