水基钻井液不能解决的复杂易塌地层,可选用平衡活度的()。
A、聚合物钻井液
B、盐水钻井液
C、分散钻井液
D、油基钻井液
参考答案:D
书面表达(共两节,满分40分)
句子考查
小题1:The network in our school consists of over one hundred computers. (改写)
The network in our school ______ _______ _______ ______ over one hundred computers.
小题2:My grandson watched the plane go higher and higher until he didn’t see it. (改写)
My grandson watched the plane go higher and higher until he _____ _____ ______ _____.
小题3:Inspired by the English teacher, the students worked even harder. (改写)
______ ______ ______ _____ by the English teacher, the students worked even harder.
小题4:说得容易,做得难。(翻译)
______________________________________________________________.
小题5:We can solve this problem successfully only in this way. (改为倒装句)
Only ______________________________________________________________.
小题6:I saw many excited people in the street the day before yesterday. (就划线部分强调)
It _______________________________________________________________.
关于干细胞研究和应用的伦理原则,错误的是
A.尊重胚胎的原则
B.禁止一切形式的商业活动的原则
C.不论是否用于科研,对胚胎的所有者予以保密的原则
D.安全有效的原则
E.知情同意的原则