题目

He just does ______ he pleases and never thinks about anyone else. A. that                                                      B. what C. which                                                  D. how   答案：B2011年底,有9只中华秋沙鸭在我省松阳县松阴溪畔过冬。中华秋沙鸭在全球存活不过千只,被称为鸟类中的“活化石”,是与大熊猫齐名的国宝。中华秋沙鸭的生殖方式是　(　　)A.体内受精、卵生??????????? B.体内受精、胎生C.体外受精、卵生??????????? D.体外受精、胎生